#255A6E#255A6E

#255A6E is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.1% C 0.065 H 226.0°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#255A6E
RGB	rgb(37, 90, 110)
HSL	hsl(196, 50%, 29%)
HSV	hsv(196, 66%, 43%)
CMYK	cmyk(66.4%, 18.2%, 0%, 56.9%)
CIE-LAB	lab(35.66, -10.78, -16.64)
CIE-LCH	lch(35.66, 19.82, 237.06°)
OKLab	oklab(44.09% -0.0449 -0.0464)
OKLCH	oklch(44.09% 0.065 226)
XYZ	xyz(7.2325, 8.8307, 16.0722)
Luminance	0.0883 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A6E #6E3925

analogous

#256E5E #255A6E #25366E

triadic

#255A6E #6E255A #5A6E25

tetradic

#255A6E #5E256E #6E3925 #366E25

square

#255A6E #5E256E #6E3925 #366E25

split-complementary

#255A6E #6E2536 #6E5E25

monochromatic

#081317 #163540 #255A6E #347F9C #4BA2C2

Accessibility & contrast

On white

7.59

#255A6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#255A6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A6E

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A6E	#FFFFFF	#000000	##FFFFFF
##255A6E	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F586F

Deuteranopia (green-blind)

#45516E

Tritanopia (blue-blind)

#006060

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #255a6e;
/* rgb */ color: rgb(37, 90, 110);
/* oklch */ color: oklch(44.1% 0.065 226.0);

Tailwind

colors: {
  custom: {
    50: '#688897',
    500: '#255a6e',
    950: '#000000',
  },
}

SCSS

$custom: #255a6e;
$custom-light: #688897;
$custom-dark: #000000;

JSON

{
  "hex": "#255a6e",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 110
  },
  "hsl": {
    "h": 196.438,
    "s": 49.66,
    "l": 28.824
  },
  "oklch": {
    "l": 0.44087,
    "c": 0.06455,
    "h": 226
  },
  "luminance": 0.08831
}

Semantic roles & 50–950 ramp

primary

#255A6E

secondary

#A1654E

accent

#754FD9

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0D

muted

#7A7C7E

Preview Lab

Preview with #255A6E

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

Preview Lab → · Contrast checker → · Palette generator →