#255D8F#255D8F

#255D8F is a mid, moderate cyan. Relative luminance 0.102; OKLCH L 46.6% C 0.100 H 248.7°. Best body text is #FFFFFF at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#255D8F
RGB	rgb(37, 93, 143)
HSL	hsl(208, 59%, 35%)
HSV	hsv(208, 74%, 56%)
CMYK	cmyk(74.1%, 35%, 0%, 43.9%)
CIE-LAB	lab(38.21, -0.53, -32.88)
CIE-LCH	lch(38.21, 32.88, 269.08°)
OKLab	oklab(46.63% -0.0365 -0.0933)
OKLCH	oklch(46.63% 0.1 248.7)
XYZ	xyz(9.6334, 10.2041, 27.4432)
Luminance	0.1021 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255D8F #8F5725

analogous

#258F8C #255D8F #25288F

triadic

#255D8F #8F255D #5D8F25

tetradic

#255D8F #8C258F #8F5725 #288F25

square

#255D8F #8C258F #8F5725 #288F25

split-complementary

#255D8F #8F2528 #8F8C25

monochromatic

#0C1E2E #183D5E #255D8F #327DC0 #5A9BD4

Accessibility & contrast

On white

6.91

#255D8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#255D8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255D8F

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255D8F	#FFFFFF	#000000	##FFFFFF
##255D8F	1.00	6.91	3.04	6.91
#FFFFFF	6.91	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#465F91

Deuteranopia (green-blind)

#37558E

Tritanopia (blue-blind)

#00696F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #255d8f;
/* rgb */ color: rgb(37, 93, 143);
/* oklch */ color: oklch(46.6% 0.100 248.7);

Tailwind

colors: {
  custom: {
    50: '#6e8ab0',
    500: '#255d8f',
    950: '#000000',
  },
}

SCSS

$custom: #255d8f;
$custom-light: #6e8ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#255d8f",
  "rgb": {
    "r": 37,
    "g": 93,
    "b": 143
  },
  "hsl": {
    "h": 208.302,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.46631,
    "c": 0.10021,
    "h": 248.7
  },
  "luminance": 0.10205
}

Semantic roles & 50–950 ramp

primary

#255D8F

secondary

#B98557

accent

#8F46E2

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080B10

muted

#7B7C7F

Preview Lab

Preview with #255D8F

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

Preview Lab → · Contrast checker → · Palette generator →