#2A188F#2A188F

#2A188F is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.5% C 0.179 H 277.4°. Best body text is #FFFFFF at 12.92:1 contrast (WCAG AA passes).

Color values

HEX	#2A188F
RGB	rgb(42, 24, 143)
HSL	hsl(249, 71%, 33%)
HSV	hsv(249, 83%, 56%)
CMYK	cmyk(70.6%, 83.2%, 0%, 43.9%)
CIE-LAB	lab(20.55, 44.14, -61.47)
CIE-LCH	lch(20.55, 75.68, 305.68°)
OKLab	oklab(33.49% 0.0232 -0.1776)
OKLCH	oklch(33.49% 0.179 277.4)
XYZ	xyz(6.2378, 3.1281, 26.2563)
Luminance	0.0313 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A188F #7D8F18

analogous

#18418F #2A188F #66188F

triadic

#2A188F #8F2A18 #188F2A

tetradic

#2A188F #8F1841 #7D8F18 #188F66

square

#2A188F #8F1841 #7D8F18 #188F66

split-complementary

#2A188F #8F6618 #418F18

monochromatic

#0B0626 #1B0F5B #2A188F #3921C3 #5A42DF

Accessibility & contrast

On white

12.92

#2A188F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#2A188F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A188F

12.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A188F	#FFFFFF	#000000	##FFFFFF
##2A188F	1.00	12.92	1.63	12.92
#FFFFFF	12.92	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003692

Deuteranopia (green-blind)

#002C8D

Tritanopia (blue-blind)

#003D55

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2a188f;
/* rgb */ color: rgb(42, 24, 143);
/* oklch */ color: oklch(33.5% 0.179 277.4);

Tailwind

colors: {
  custom: {
    50: '#7459b1',
    500: '#2a188f',
    950: '#000000',
  },
}

SCSS

$custom: #2a188f;
$custom-light: #7459b1;
$custom-dark: #000000;

JSON

{
  "hex": "#2a188f",
  "rgb": {
    "r": 42,
    "g": 24,
    "b": 143
  },
  "hsl": {
    "h": 249.076,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33487,
    "c": 0.1791,
    "h": 277.4
  },
  "luminance": 0.03129
}

Semantic roles & 50–950 ramp

primary

#2A188F

secondary

#ADC043

accent

#EE3AD3

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #2A188F

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

Preview Lab → · Contrast checker → · Palette generator →