#255A8D#255A8D

#255A8D is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.8% C 0.101 H 250.2°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#255A8D
RGB	rgb(37, 90, 141)
HSL	hsl(209, 58%, 35%)
HSV	hsv(209, 74%, 55%)
CMYK	cmyk(73.8%, 36.2%, 0%, 44.7%)
CIE-LAB	lab(37.17, 0.62, -33.31)
CIE-LCH	lch(37.17, 33.31, 271.06°)
OKLab	oklab(45.78% -0.034 -0.0947)
OKLCH	oklch(45.78% 0.101 250.2)
XYZ	xyz(9.2250, 9.6277, 26.5663)
Luminance	0.0963 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255A8D #8D5825

analogous

#258D8C #255A8D #25268D

triadic

#255A8D #8D255A #5A8D25

tetradic

#255A8D #8C258D #8D5825 #268D25

square

#255A8D #8C258D #8D5825 #268D25

split-complementary

#255A8D #8D2526 #8D8C25

monochromatic

#0C1C2C #183B5D #255A8D #3279BD #5997D3

Accessibility & contrast

On white

7.18

#255A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#255A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255A8D

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255A8D	#FFFFFF	#000000	##FFFFFF
##255A8D	1.00	7.18	2.93	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435D8F

Deuteranopia (green-blind)

#34538C

Tritanopia (blue-blind)

#00666D

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #255a8d;
/* rgb */ color: rgb(37, 90, 141);
/* oklch */ color: oklch(45.8% 0.101 250.2);

Tailwind

colors: {
  custom: {
    50: '#6e88ae',
    500: '#255a8d',
    950: '#000000',
  },
}

SCSS

$custom: #255a8d;
$custom-light: #6e88ae;
$custom-dark: #000000;

JSON

{
  "hex": "#255a8d",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 141
  },
  "hsl": {
    "h": 209.423,
    "s": 58.427,
    "l": 34.902
  },
  "oklch": {
    "l": 0.45779,
    "c": 0.10058,
    "h": 250.2
  },
  "luminance": 0.09629
}

Semantic roles & 50–950 ramp

primary

#255A8D

secondary

#B88656

accent

#9246E2

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #255A8D

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

Preview Lab → · Contrast checker → · Palette generator →