#255C8F#255C8F

#255C8F is a mid, moderate cyan. Relative luminance 0.100; OKLCH L 46.4% C 0.101 H 249.5°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#255C8F
RGB	rgb(37, 92, 143)
HSL	hsl(209, 59%, 35%)
HSV	hsv(209, 74%, 56%)
CMYK	cmyk(74.1%, 35.7%, 0%, 43.9%)
CIE-LAB	lab(37.90, 0.11, -33.37)
CIE-LCH	lch(37.90, 33.37, 270.19°)
OKLab	oklab(46.39% -0.0354 -0.0948)
OKLCH	oklch(46.39% 0.101 249.5)
XYZ	xyz(9.5462, 10.0297, 27.4141)
Luminance	0.1003 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255C8F #8F5825

analogous

#258F8D #255C8F #25278F

triadic

#255C8F #8F255C #5C8F25

tetradic

#255C8F #8D258F #8F5825 #278F25

square

#255C8F #8D258F #8F5825 #278F25

split-complementary

#255C8F #8F2527 #8F8D25

monochromatic

#0C1D2E #183D5E #255C8F #327BC0 #5A9AD4

Accessibility & contrast

On white

6.99

#255C8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#255C8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255C8F

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255C8F	#FFFFFF	#000000	##FFFFFF
##255C8F	1.00	6.99	3.01	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455F91

Deuteranopia (green-blind)

#36558E

Tritanopia (blue-blind)

#00686F

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #255c8f;
/* rgb */ color: rgb(37, 92, 143);
/* oklch */ color: oklch(46.4% 0.101 249.5);

Tailwind

colors: {
  custom: {
    50: '#6e89b0',
    500: '#255c8f',
    950: '#000000',
  },
}

SCSS

$custom: #255c8f;
$custom-light: #6e89b0;
$custom-dark: #000000;

JSON

{
  "hex": "#255c8f",
  "rgb": {
    "r": 37,
    "g": 92,
    "b": 143
  },
  "hsl": {
    "h": 208.868,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.46387,
    "c": 0.10121,
    "h": 249.5
  },
  "luminance": 0.10031
}

Semantic roles & 50–950 ramp

primary

#255C8F

secondary

#B98657

accent

#9146E2

background

#F7F8FA

surface

#EDF0F5

border

#C8CBCF

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #255C8F

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

Preview Lab → · Contrast checker → · Palette generator →