#255E8F#255E8F

#255E8F is a mid, moderate cyan. Relative luminance 0.104; OKLCH L 46.9% C 0.099 H 247.8°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#255E8F
RGB	rgb(37, 94, 143)
HSL	hsl(208, 59%, 35%)
HSV	hsv(208, 74%, 56%)
CMYK	cmyk(74.1%, 34.3%, 0%, 43.9%)
CIE-LAB	lab(38.52, -1.16, -32.38)
CIE-LCH	lch(38.52, 32.40, 267.96°)
OKLab	oklab(46.88% -0.0375 -0.0919)
OKLCH	oklch(46.88% 0.099 247.8)
XYZ	xyz(9.7217, 10.3808, 27.4726)
Luminance	0.1038 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255E8F #8F5625

analogous

#258F8B #255E8F #25298F

triadic

#255E8F #8F255E #5E8F25

tetradic

#255E8F #8B258F #8F5625 #298F25

square

#255E8F #8B258F #8F5625 #298F25

split-complementary

#255E8F #8F2529 #8F8B25

monochromatic

#0C1E2E #183E5E #255E8F #327EC0 #5A9CD4

Accessibility & contrast

On white

6.83

#255E8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#255E8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255E8F

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255E8F	#FFFFFF	#000000	##FFFFFF
##255E8F	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#486091

Deuteranopia (green-blind)

#39568E

Tritanopia (blue-blind)

#006A70

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #255e8f;
/* rgb */ color: rgb(37, 94, 143);
/* oklch */ color: oklch(46.9% 0.099 247.8);

Tailwind

colors: {
  custom: {
    50: '#6e8bb0',
    500: '#255e8f',
    950: '#000000',
  },
}

SCSS

$custom: #255e8f;
$custom-light: #6e8bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#255e8f",
  "rgb": {
    "r": 37,
    "g": 94,
    "b": 143
  },
  "hsl": {
    "h": 207.736,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.46876,
    "c": 0.09924,
    "h": 247.8
  },
  "luminance": 0.10382
}

Semantic roles & 50–950 ramp

primary

#255E8F

secondary

#B98457

accent

#8E46E2

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #255E8F

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

Preview Lab → · Contrast checker → · Palette generator →