#255B8D#255B8D

#255B8D is a mid, moderate cyan. Relative luminance 0.098; OKLCH L 46.0% C 0.100 H 249.4°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#255B8D
RGB	rgb(37, 91, 141)
HSL	hsl(209, 58%, 35%)
HSV	hsv(209, 74%, 55%)
CMYK	cmyk(73.8%, 35.5%, 0%, 44.7%)
CIE-LAB	lab(37.48, -0.02, -32.82)
CIE-LCH	lch(37.48, 32.82, 269.97°)
OKLab	oklab(46.02% -0.035 -0.0932)
OKLCH	oklch(46.02% 0.1 249.4)
XYZ	xyz(9.3099, 9.7975, 26.5946)
Luminance	0.0980 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B8D #8D5725

analogous

#258D8B #255B8D #25278D

triadic

#255B8D #8D255B #5B8D25

tetradic

#255B8D #8B258D #8D5725 #278D25

square

#255B8D #8B258D #8D5725 #278D25

split-complementary

#255B8D #8D2527 #8D8B25

monochromatic

#0C1C2C #183C5D #255B8D #327ABD #5999D3

Accessibility & contrast

On white

7.10

#255B8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#255B8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B8D

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B8D	#FFFFFF	#000000	##FFFFFF
##255B8D	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445E8F

Deuteranopia (green-blind)

#35548C

Tritanopia (blue-blind)

#00676D

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255b8d;
/* rgb */ color: rgb(37, 91, 141);
/* oklch */ color: oklch(46.0% 0.100 249.4);

Tailwind

colors: {
  custom: {
    50: '#6e89ae',
    500: '#255b8d',
    950: '#000000',
  },
}

SCSS

$custom: #255b8d;
$custom-light: #6e89ae;
$custom-dark: #000000;

JSON

{
  "hex": "#255b8d",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 141
  },
  "hsl": {
    "h": 208.846,
    "s": 58.427,
    "l": 34.902
  },
  "oklch": {
    "l": 0.46023,
    "c": 0.09956,
    "h": 249.4
  },
  "luminance": 0.09799
}

Semantic roles & 50–950 ramp

primary

#255B8D

secondary

#B88556

accent

#9146E2

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #255B8D

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

Preview Lab → · Contrast checker → · Palette generator →