#255B64#255B64

#255B64 is a dark, muted teal. Relative luminance 0.088; OKLCH L 43.9% C 0.058 H 210.0°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#255B64
RGB	rgb(37, 91, 100)
HSL	hsl(189, 46%, 27%)
HSV	hsv(189, 63%, 39%)
CMYK	cmyk(63%, 9%, 0%, 60.8%)
CIE-LAB	lab(35.59, -14.75, -10.52)
CIE-LCH	lch(35.59, 18.12, 215.50°)
OKLab	oklab(43.9% -0.0504 -0.0291)
OKLCH	oklch(43.9% 0.058 210)
XYZ	xyz(6.8033, 8.7949, 13.3932)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B64 #642E25

analogous

#25644E #255B64 #253C64

triadic

#255B64 #64255B #5B6425

tetradic

#255B64 #4E2564 #642E25 #3C6425

square

#255B64 #4E2564 #642E25 #3C6425

split-complementary

#255B64 #64253C #644E25

monochromatic

#081416 #143237 #255B64 #368491 #48ABBB

Accessibility & contrast

On white

7.61

#255B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#255B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B64

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B64	#FFFFFF	#000000	##FFFFFF
##255B64	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#535865

Deuteranopia (green-blind)

#4A5164

Tritanopia (blue-blind)

#005F5E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #255b64;
/* rgb */ color: rgb(37, 91, 100);
/* oklch */ color: oklch(43.9% 0.058 210.0);

Tailwind

colors: {
  custom: {
    50: '#678990',
    500: '#255b64',
    950: '#000000',
  },
}

SCSS

$custom: #255b64;
$custom-light: #678990;
$custom-dark: #000000;

JSON

{
  "hex": "#255b64",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 100
  },
  "hsl": {
    "h": 188.571,
    "s": 45.985,
    "l": 26.863
  },
  "oklch": {
    "l": 0.43899,
    "c": 0.05827,
    "h": 210
  },
  "luminance": 0.08796
}

Semantic roles & 50–950 ramp

primary

#255B64

secondary

#97584E

accent

#6552D6

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #255B64

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →