#255A5B#255A5B

#255A5B is a dark, muted teal. Relative luminance 0.085; OKLCH L 43.3% C 0.056 H 197.0°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#255A5B
RGB	rgb(37, 90, 91)
HSL	hsl(181, 42%, 25%)
HSV	hsv(181, 59%, 36%)
CMYK	cmyk(59.3%, 1.1%, 0%, 64.3%)
CIE-LAB	lab(34.92, -17.08, -5.90)
CIE-LCH	lch(34.92, 18.07, 199.05°)
OKLab	oklab(43.26% -0.0535 -0.0163)
OKLCH	oklch(43.26% 0.056 197)
XYZ	xyz(6.3066, 8.4604, 11.1962)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A5B #5B2625

analogous

#255B41 #255A5B #253F5B

triadic

#255A5B #5B255A #5A5B25

tetradic

#255A5B #41255B #5B2625 #3F5B25

square

#255A5B #41255B #5B2625 #3F5B25

split-complementary

#255A5B #5B253F #5B4125

monochromatic

#091616 #132F2F #255A5B #378587 #48B0B2

Accessibility & contrast

On white

7.80

#255A5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#255A5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A5B

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A5B	#FFFFFF	#000000	##FFFFFF
##255A5B	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54565B

Deuteranopia (green-blind)

#4B4F5B

Tritanopia (blue-blind)

#005D5A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #255a5b;
/* rgb */ color: rgb(37, 90, 91);
/* oklch */ color: oklch(43.3% 0.056 197.0);

Tailwind

colors: {
  custom: {
    50: '#668989',
    500: '#255a5b',
    950: '#000000',
  },
}

SCSS

$custom: #255a5b;
$custom-light: #668989;
$custom-dark: #000000;

JSON

{
  "hex": "#255a5b",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 91
  },
  "hsl": {
    "h": 181.111,
    "s": 42.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.43257,
    "c": 0.05591,
    "h": 197
  },
  "luminance": 0.08461
}

Semantic roles & 50–950 ramp

primary

#255A5B

secondary

#8E4F4D

accent

#5856D2

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060B0B

muted

#7A7C7C

Preview Lab

Preview with #255A5B

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

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