#2555A8#2555A8

#2555A8 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.4% C 0.144 H 260.5°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#2555A8
RGB	rgb(37, 85, 168)
HSL	hsl(218, 64%, 40%)
HSV	hsv(218, 78%, 66%)
CMYK	cmyk(78%, 49.4%, 0%, 34.1%)
CIE-LAB	lab(37.33, 14.37, -49.27)
CIE-LCH	lch(37.33, 51.32, 286.25°)
OKLab	oklab(46.44% -0.0236 -0.1416)
OKLCH	oklch(46.44% 0.144 260.5)
XYZ	xyz(11.0768, 9.7162, 38.3298)
Luminance	0.0972 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2555A8 #A87825

analogous

#2596A8 #2555A8 #3625A8

triadic

#2555A8 #A82555 #55A825

tetradic

#2555A8 #A82596 #A87825 #25A836

square

#2555A8 #A82596 #A87825 #25A836

split-complementary

#2555A8 #A83625 #96A825

monochromatic

#0F2244 #1A3C76 #2555A8 #3770D3 #6994DE

Accessibility & contrast

On white

7.13

#2555A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#2555A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2555A8

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2555A8	#FFFFFF	#000000	##FFFFFF
##2555A8	1.00	7.13	2.94	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#255EAB

Deuteranopia (green-blind)

#0052A6

Tritanopia (blue-blind)

#006976

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2555a8;
/* rgb */ color: rgb(37, 85, 168);
/* oklch */ color: oklch(46.4% 0.144 260.5);

Tailwind

colors: {
  custom: {
    50: '#7484c2',
    500: '#2555a8',
    950: '#000000',
  },
}

SCSS

$custom: #2555a8;
$custom-light: #7484c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2555a8",
  "rgb": {
    "r": 37,
    "g": 85,
    "b": 168
  },
  "hsl": {
    "h": 218.015,
    "s": 63.902,
    "l": 40.196
  },
  "oklch": {
    "l": 0.46441,
    "c": 0.14358,
    "h": 260.5
  },
  "luminance": 0.09717
}

Semantic roles & 50–950 ramp

primary

#2555A8

secondary

#C4A165

accent

#AA41E7

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2555A8

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

Preview Lab → · Contrast checker → · Palette generator →