#255B88#255B88

#255B88 is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.7% C 0.093 H 246.9°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#255B88
RGB	rgb(37, 91, 136)
HSL	hsl(207, 57%, 34%)
HSV	hsv(207, 73%, 53%)
CMYK	cmyk(72.8%, 33.1%, 0%, 46.7%)
CIE-LAB	lab(37.21, -1.91, -30.20)
CIE-LCH	lch(37.21, 30.26, 266.37°)
OKLab	oklab(45.73% -0.0365 -0.0856)
OKLCH	oklch(45.73% 0.093 246.9)
XYZ	xyz(8.9463, 9.6521, 24.6793)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B88 #885225

analogous

#258884 #255B88 #252A88

triadic

#255B88 #88255B #5B8825

tetradic

#255B88 #842588 #885225 #2A8825

square

#255B88 #842588 #885225 #2A8825

split-complementary

#255B88 #88252A #888425

monochromatic

#0B1B28 #183B58 #255B88 #327BB8 #5699D1

Accessibility & contrast

On white

7.17

#255B88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#255B88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B88

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B88	#FFFFFF	#000000	##FFFFFF
##255B88	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475D8A

Deuteranopia (green-blind)

#395387

Tritanopia (blue-blind)

#00666B

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255b88;
/* rgb */ color: rgb(37, 91, 136);
/* oklch */ color: oklch(45.7% 0.093 246.9);

Tailwind

colors: {
  custom: {
    50: '#6d89ab',
    500: '#255b88',
    950: '#000000',
  },
}

SCSS

$custom: #255b88;
$custom-light: #6d89ab;
$custom-dark: #000000;

JSON

{
  "hex": "#255b88",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 136
  },
  "hsl": {
    "h": 207.273,
    "s": 57.225,
    "l": 33.922
  },
  "oklch": {
    "l": 0.45726,
    "c": 0.09303,
    "h": 246.9
  },
  "luminance": 0.09653
}

Semantic roles & 50–950 ramp

primary

#255B88

secondary

#B68053

accent

#8D47E0

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#080B10

muted

#7A7C7F

Preview Lab

Preview with #255B88

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

Preview Lab → · Contrast checker → · Palette generator →