#255F8F#255F8F

#255F8F is a mid, moderate cyan. Relative luminance 0.106; OKLCH L 47.1% C 0.098 H 247.0°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#255F8F
RGB	rgb(37, 95, 143)
HSL	hsl(207, 59%, 35%)
HSV	hsv(207, 74%, 56%)
CMYK	cmyk(74.1%, 33.6%, 0%, 43.9%)
CIE-LAB	lab(38.83, -1.78, -31.89)
CIE-LCH	lch(38.83, 31.94, 266.80°)
OKLab	oklab(47.12% -0.0385 -0.0904)
OKLCH	oklch(47.12% 0.098 247)
XYZ	xyz(9.8112, 10.5598, 27.5024)
Luminance	0.1056 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255F8F #8F5525

analogous

#258F8A #255F8F #252A8F

triadic

#255F8F #8F255F #5F8F25

tetradic

#255F8F #8A258F #8F5525 #2A8F25

square

#255F8F #8A258F #8F5525 #2A8F25

split-complementary

#255F8F #8F252A #8F8A25

monochromatic

#0C1E2E #183F5E #255F8F #327FC0 #5A9DD4

Accessibility & contrast

On white

6.75

#255F8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#255F8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255F8F

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255F8F	#FFFFFF	#000000	##FFFFFF
##255F8F	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#496191

Deuteranopia (green-blind)

#3A578E

Tritanopia (blue-blind)

#006B70

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #255f8f;
/* rgb */ color: rgb(37, 95, 143);
/* oklch */ color: oklch(47.1% 0.098 247.0);

Tailwind

colors: {
  custom: {
    50: '#6e8cb0',
    500: '#255f8f',
    950: '#000000',
  },
}

SCSS

$custom: #255f8f;
$custom-light: #6e8cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#255f8f",
  "rgb": {
    "r": 37,
    "g": 95,
    "b": 143
  },
  "hsl": {
    "h": 207.17,
    "s": 58.889,
    "l": 35.294
  },
  "oklch": {
    "l": 0.47121,
    "c": 0.0983,
    "h": 247
  },
  "luminance": 0.10561
}

Semantic roles & 50–950 ramp

primary

#255F8F

secondary

#B98357

accent

#8D46E2

background

#F7F8FA

surface

#EDF0F4

border

#C8CBCE

text

#080C10

muted

#7B7D7F

Preview Lab

Preview with #255F8F

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

Preview Lab → · Contrast checker → · Palette generator →