#255B8E#255B8E

#255B8E is a mid, moderate cyan. Relative luminance 0.098; OKLCH L 46.1% C 0.101 H 249.9°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#255B8E
RGB	rgb(37, 91, 142)
HSL	hsl(209, 59%, 35%)
HSV	hsv(209, 74%, 56%)
CMYK	cmyk(73.9%, 35.9%, 0%, 44.3%)
CIE-LAB	lab(37.53, 0.36, -33.34)
CIE-LCH	lch(37.53, 33.34, 270.62°)
OKLab	oklab(46.08% -0.0347 -0.0947)
OKLCH	oklch(46.08% 0.101 249.9)
XYZ	xyz(9.3847, 9.8274, 26.9882)
Luminance	0.0983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B8E #8E5825

analogous

#258E8C #255B8E #25268E

triadic

#255B8E #8E255B #5B8E25

tetradic

#255B8E #8C258E #8E5825 #268E25

square

#255B8E #8C258E #8E5825 #268E25

split-complementary

#255B8E #8E2526 #8E8C25

monochromatic

#0C1D2D #183C5D #255B8E #327ABF #5A98D4

Accessibility & contrast

On white

7.08

#255B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#255B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B8E

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B8E	#FFFFFF	#000000	##FFFFFF
##255B8E	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#445E90

Deuteranopia (green-blind)

#35548D

Tritanopia (blue-blind)

#00676E

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255b8e;
/* rgb */ color: rgb(37, 91, 142);
/* oklch */ color: oklch(46.1% 0.101 249.9);

Tailwind

colors: {
  custom: {
    50: '#6e89af',
    500: '#255b8e',
    950: '#000000',
  },
}

SCSS

$custom: #255b8e;
$custom-light: #6e89af;
$custom-dark: #000000;

JSON

{
  "hex": "#255b8e",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 142
  },
  "hsl": {
    "h": 209.143,
    "s": 58.659,
    "l": 35.098
  },
  "oklch": {
    "l": 0.46083,
    "c": 0.10089,
    "h": 249.9
  },
  "luminance": 0.09828
}

Semantic roles & 50–950 ramp

primary

#255B8E

secondary

#B98656

accent

#9246E2

background

#F7F8FA

surface

#EDEFF4

border

#C8CACE

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #255B8E

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

Preview Lab → · Contrast checker → · Palette generator →