#255A66#255A66

#255A66 is a dark, muted cyan. Relative luminance 0.087; OKLCH L 43.7% C 0.059 H 214.9°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#255A66
RGB	rgb(37, 90, 102)
HSL	hsl(191, 47%, 27%)
HSV	hsv(191, 64%, 40%)
CMYK	cmyk(63.7%, 11.8%, 0%, 60%)
CIE-LAB	lab(35.33, -13.51, -12.16)
CIE-LCH	lch(35.33, 18.18, 221.98°)
OKLab	oklab(43.72% -0.0483 -0.0337)
OKLCH	oklch(43.72% 0.059 214.9)
XYZ	xyz(6.8164, 8.6643, 13.8809)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A66 #663125

analogous

#256652 #255A66 #253A66

triadic

#255A66 #66255A #5A6625

tetradic

#255A66 #522566 #663125 #3A6625

square

#255A66 #522566 #663125 #3A6625

split-complementary

#255A66 #66253A #665225

monochromatic

#081416 #153239 #255A66 #358293 #49A7BD

Accessibility & contrast

On white

7.68

#255A66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#255A66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A66

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A66	#FFFFFF	#000000	##FFFFFF
##255A66	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#515767

Deuteranopia (green-blind)

#485066

Tritanopia (blue-blind)

#005F5E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #255a66;
/* rgb */ color: rgb(37, 90, 102);
/* oklch */ color: oklch(43.7% 0.059 214.9);

Tailwind

colors: {
  custom: {
    50: '#678891',
    500: '#255a66',
    950: '#000000',
  },
}

SCSS

$custom: #255a66;
$custom-light: #678891;
$custom-dark: #000000;

JSON

{
  "hex": "#255a66",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 102
  },
  "hsl": {
    "h": 191.077,
    "s": 46.763,
    "l": 27.255
  },
  "oklch": {
    "l": 0.43718,
    "c": 0.05893,
    "h": 214.9
  },
  "luminance": 0.08665
}

Semantic roles & 50–950 ramp

primary

#255A66

secondary

#995C4E

accent

#6A51D6

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #255A66

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

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