#255AA4#255AA4

#255AA4 is a mid, vivid cyan. Relative luminance 0.104; OKLCH L 47.3% C 0.132 H 257.5°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#255AA4
RGB	rgb(37, 90, 164)
HSL	hsl(215, 63%, 39%)
HSV	hsv(215, 77%, 64%)
CMYK	cmyk(77.4%, 45.1%, 0%, 35.7%)
CIE-LAB	lab(38.52, 9.51, -44.97)
CIE-LCH	lch(38.52, 45.96, 281.94°)
OKLab	oklab(47.28% -0.0285 -0.1289)
OKLCH	oklch(47.28% 0.132 257.5)
XYZ	xyz(11.1175, 10.3847, 36.5333)
Luminance	0.1039 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#255AA4 #A46F25

analogous

#259AA4 #255AA4 #3025A4

triadic

#255AA4 #A4255A #5AA425

tetradic

#255AA4 #A4259A #A46F25 #25A430

square

#255AA4 #A4259A #A46F25 #25A430

split-complementary

#255AA4 #A43025 #9AA425

monochromatic

#0E2340 #1A3F72 #255AA4 #3576D1 #6798DD

Accessibility & contrast

On white

6.82

#255AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#255AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #255AA4

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##255AA4	#FFFFFF	#000000	##FFFFFF
##255AA4	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3461A7

Deuteranopia (green-blind)

#1A55A3

Tritanopia (blue-blind)

#006C77

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #255aa4;
/* rgb */ color: rgb(37, 90, 164);
/* oklch */ color: oklch(47.3% 0.132 257.5);

Tailwind

colors: {
  custom: {
    50: '#7288bf',
    500: '#255aa4',
    950: '#000000',
  },
}

SCSS

$custom: #255aa4;
$custom-light: #7288bf;
$custom-dark: #000000;

JSON

{
  "hex": "#255aa4",
  "rgb": {
    "r": 37,
    "g": 90,
    "b": 164
  },
  "hsl": {
    "h": 214.961,
    "s": 63.184,
    "l": 39.412
  },
  "oklch": {
    "l": 0.47277,
    "c": 0.13198,
    "h": 257.5
  },
  "luminance": 0.10386
}

Semantic roles & 50–950 ramp

primary

#255AA4

secondary

#C29A62

accent

#A242E6

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #255AA4

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

Preview Lab → · Contrast checker → · Palette generator →