#004F55

Accessibility

AAA

9.34:1

Vs white / black

9.34:1 · 2.25:1

Sources

Library color

Codes

Formats

HEX

#004f55

RGB

rgb(0, 79, 85)

RGBA

rgba(0, 79, 85, 1)

HSL

hsl(184, 100%, 17%)

HSLA

hsla(184, 100%, 17%, 1)

HSV

hsv(184, 100%, 33%)

LAB

lab(30.03% -18.39 -9.55)

LCH

lch(30.03% 20.72 207.44)

OKLAB

oklab(0.3897 -0.0609 -0.0266)

OKLCH

oklch(0.3897 0.0665 203.59)

XYZ

xyz(4.43, 6.25, 9.56)

CMYK

cmyk(100%, 7%, 0%, 67%)

CSS

color: #004f55;

CSS variable

--color-004f55: #004f55;

SCSS

$color-004f55: #004f55;

JavaScript

const color = "#004f55";

TypeScript

const color: string = "#004f55";

React

style={{ backgroundColor: "#004f55" }}

JSON

{ "hex": "#004f55", "rgb": { "r": 0, "g": 79, "b": 85 }, "oklch": "oklch(0.3897 0.0665 203.59)" }

Export

Developer code

css

:root {
  --#004f55-1: #004f55;
}

Design systems

Nearest official tokens

An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.

Nearest Tailwind color

teal-900

Noticeably different · ΔE 4.85 · #134E4A

Nearest CSS named color

DarkSlateGray

Very different · ΔE 5.81 · #2F4F4F

Nearest Material color

cyan-900

Very different · ΔE 5.73 · #006064

Nearest Bootstrap color

dark

Very different · ΔE 19.42 · #212529

OKLCH

Perceptual 50–950 scale

Generated in OKLCH from this hex. Not an official Tailwind scale unless the hex itself is a Tailwind token.

50d7feff 100c7f1f5 200addfe4 30091c9cf 4006eaeb4 500529298 600437a80 700336267 800244b4e 900163537 950041f22

Palette

Tints & shades

Full scale from light tints through the base color into deep shades

eaf0f1 d5e2e3 bfd3d5 aac4c6 95b6b8 80a7aa 6a989c 558a8e 407b80 2b6c71 155e63 004f55 00484e 004247 003b40 003539 002e32 00282b 002123 001a1c 001415 000d0e 000707

Palette

Tints

Mixed toward white — soft backgrounds and highlights

eaf0f1 d5e2e3 bfd3d5 aac4c6 95b6b8 80a7aa 6a989c 558a8e 407b80 2b6c71 155e63

Palette

Shades

Mixed toward black — depth, text, and emphasis

00484e 004247 003b40 003539 002e32 00282b 002123 001a1c 001415 000d0e 000707

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

0b5359 15575c 205b60 2b5f63 356367 40686b 4b6c6e 557072 607475 6b7879 757c7c

Harmony

Complementary

Opposite on the color wheel for contrast

#004F55Stop 1 #570600Stop 2

Harmony

Analogous

Neighbors that sit comfortably together

#005731Stop 1 #004F55Stop 2 #002657Stop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#004F55Stop 1 #570051Stop 2 #515700Stop 3

Harmony

Split complementary

Base plus two accents beside the complement

#004F55Stop 1 #570026Stop 2 #573100Stop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#005F66Stop 1 #00A7B3Stop 2 #00EEFFStop 3 #4DF3FFStop 4 #99F8FFStop 5

Using this color

Where #004f55 works

#004F55 (#004f55) sits in the cyan family at about 184° hue, 100% saturation, and 17% lightness. Contrast is 9.34:1 on white and 2.25:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: teal-900 (approximation unless the hex is an official scale stop).

Sensible jobs for this swatch

body text, chrome, and dark-mode surfaces
text or icons on a white canvas

On a black or near-black UI, #004f55 is 2.25:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Family context: Freshness, clarity, and innovation. Great for tech accents and clean digital products. Common uses still include buttons, charts, and accents in the Cyan range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Tailwind teal 900#134E4A Material Cyan 900#006064 DarkSlateGray#2F4F4F Spectrum #305D64#305D64 Tailwind teal 800#115E59 Web Safe #006666#006666 Web Safe #336666#336666 Tailwind cyan 900#164E63 Spectrum #2E686B#2E686B Web Safe #003333#003333 Material Teal 900#004D40 Spectrum #2A6374#2A6374