#255B8F#255B8F

#255B8F is a mid, moderate cyan. Relative luminance 0.099; OKLCH L 46.1% C 0.102 H 250.3°. Best body text is #FFFFFF at 7.07:1 contrast (WCAG AA passes).

Color values

HEX	#255B8F
RGB	rgb(37, 91, 143)
HSL	hsl(209, 59%, 35%)
HSV	hsv(209, 74%, 56%)
CMYK	cmyk(74.1%, 36.4%, 0%, 43.9%)
CIE-LAB	lab(37.59, 0.74, -33.86)
CIE-LCH	lch(37.59, 33.86, 271.26°)
OKLab	oklab(46.14% -0.0344 -0.0962)
OKLCH	oklch(46.14% 0.102 250.3)
XYZ	xyz(9.4601, 9.8576, 27.3854)
Luminance	0.0986 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255B8F #8F5925

analogous

#258F8E #255B8F #25268F

triadic

#255B8F #8F255B #5B8F25

tetradic

#255B8F #8E258F #8F5925 #268F25

square

#255B8F #8E258F #8F5925 #268F25

split-complementary

#255B8F #8F2526 #8F8E25

monochromatic

#0C1D2E #183C5E #255B8F #327AC0 #5A98D4

Accessibility & contrast

On white

7.07

#255B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#255B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #255B8F

7.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255B8F	#FFFFFF	#000000	##FFFFFF
##255B8F	1.00	7.07	2.97	7.07
#FFFFFF	7.07	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435E91

Deuteranopia (green-blind)

#34548E

Tritanopia (blue-blind)

#00676E

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #255b8f;
/* rgb */ color: rgb(37, 91, 143);
/* oklch */ color: oklch(46.1% 0.102 250.3);

Tailwind

colors: {
  custom: {
    50: '#6e89b0',
    500: '#255b8f',
    950: '#000000',
  },
}

SCSS

$custom: #255b8f;
$custom-light: #6e89b0;
$custom-dark: #000000;

JSON

{
  "hex": "#255b8f",
  "rgb": {
    "r": 37,
    "g": 91,
    "b": 143
  },
  "hsl": {
    "h": 209.434,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.46144,
    "c": 0.10222,
    "h": 250.3
  },
  "luminance": 0.09859
}

Semantic roles & 50–950 ramp

primary

#255B8F

secondary

#B98757

accent

#9246E2

background

#F7F8FA

surface

#EDEFF5

border

#C8CACF

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #255B8F

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

Preview Lab → · Contrast checker → · Palette generator →