#2A188D#2A188D

#2A188D is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.3% C 0.177 H 277.7°. Best body text is #FFFFFF at 13.01:1 contrast (WCAG AA passes).

Color values

HEX	#2A188D
RGB	rgb(42, 24, 141)
HSL	hsl(249, 71%, 32%)
HSV	hsv(249, 83%, 55%)
CMYK	cmyk(70.2%, 83%, 0%, 44.7%)
CIE-LAB	lab(20.31, 43.52, -60.61)
CIE-LCH	lch(20.31, 74.62, 305.68°)
OKLab	oklab(33.26% 0.0238 -0.1751)
OKLCH	oklch(33.26% 0.177 277.7)
XYZ	xyz(6.0876, 3.0681, 25.4655)
Luminance	0.0307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A188D #7B8D18

analogous

#18408D #2A188D #65188D

triadic

#2A188D #8D2A18 #188D2A

tetradic

#2A188D #8D1840 #7B8D18 #188D65

square

#2A188D #8D1840 #7B8D18 #188D65

split-complementary

#2A188D #8D6518 #408D18

monochromatic

#0B0624 #1A0F59 #2A188D #3A21C1 #5941DF

Accessibility & contrast

On white

13.01

#2A188D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#2A188D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A188D

13.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A188D	#FFFFFF	#000000	##FFFFFF
##2A188D	1.00	13.01	1.61	13.01
#FFFFFF	13.01	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003690

Deuteranopia (green-blind)

#002C8B

Tritanopia (blue-blind)

#003D53

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2a188d;
/* rgb */ color: rgb(42, 24, 141);
/* oklch */ color: oklch(33.3% 0.177 277.7);

Tailwind

colors: {
  custom: {
    50: '#7459b0',
    500: '#2a188d',
    950: '#000000',
  },
}

SCSS

$custom: #2a188d;
$custom-light: #7459b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a188d",
  "rgb": {
    "r": 42,
    "g": 24,
    "b": 141
  },
  "hsl": {
    "h": 249.231,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.33255,
    "c": 0.17672,
    "h": 277.7
  },
  "luminance": 0.03069
}

Semantic roles & 50–950 ramp

primary

#2A188D

secondary

#ACBF42

accent

#EE3AD2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2A188D

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

Preview Lab → · Contrast checker → · Palette generator →