#255CA8#255CA8

#255CA8 is a mid, vivid cyan. Relative luminance 0.109; OKLCH L 48.0% C 0.135 H 257.4°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#255CA8
RGB	rgb(37, 92, 168)
HSL	hsl(215, 64%, 40%)
HSV	hsv(215, 78%, 66%)
CMYK	cmyk(78%, 45.2%, 0%, 34.1%)
CIE-LAB	lab(39.37, 9.76, -45.99)
CIE-LCH	lch(39.37, 47.02, 281.98°)
OKLab	oklab(48.01% -0.0294 -0.1318)
OKLCH	oklch(48.01% 0.135 257.4)
XYZ	xyz(11.6554, 10.8734, 38.5227)
Luminance	0.1087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255CA8 #A87125

analogous

#259DA8 #255CA8 #2F25A8

triadic

#255CA8 #A8255C #5CA825

tetradic

#255CA8 #A8259D #A87125 #25A82F

square

#255CA8 #A8259D #A87125 #25A82F

split-complementary

#255CA8 #A82F25 #9DA825

monochromatic

#0F2544 #1A4176 #255CA8 #3779D3 #699ADE

Accessibility & contrast

On white

6.61

#255CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#255CA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255CA8

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255CA8	#FFFFFF	#000000	##FFFFFF
##255CA8	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3563AB

Deuteranopia (green-blind)

#1957A6

Tritanopia (blue-blind)

#006E7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #255ca8;
/* rgb */ color: rgb(37, 92, 168);
/* oklch */ color: oklch(48.0% 0.135 257.4);

Tailwind

colors: {
  custom: {
    50: '#7389c2',
    500: '#255ca8',
    950: '#000000',
  },
}

SCSS

$custom: #255ca8;
$custom-light: #7389c2;
$custom-dark: #000000;

JSON

{
  "hex": "#255ca8",
  "rgb": {
    "r": 37,
    "g": 92,
    "b": 168
  },
  "hsl": {
    "h": 214.809,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4801,
    "c": 0.1351,
    "h": 257.4
  },
  "luminance": 0.10875
}

Semantic roles & 50–950 ramp

primary

#255CA8

secondary

#C49C65

accent

#A141E7

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255CA8

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

Preview Lab → · Contrast checker → · Palette generator →