#2A188E#2A188E

#2A188E is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.4% C 0.178 H 277.6°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#2A188E
RGB	rgb(42, 24, 142)
HSL	hsl(249, 71%, 33%)
HSV	hsv(249, 83%, 56%)
CMYK	cmyk(70.4%, 83.1%, 0%, 44.3%)
CIE-LAB	lab(20.43, 43.83, -61.04)
CIE-LCH	lch(20.43, 75.15, 305.68°)
OKLab	oklab(33.37% 0.0235 -0.1764)
OKLCH	oklch(33.37% 0.178 277.6)
XYZ	xyz(6.1624, 3.0980, 25.8592)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A188E #7C8E18

analogous

#18418E #2A188E #65188E

triadic

#2A188E #8E2A18 #188E2A

tetradic

#2A188E #8E1841 #7C8E18 #188E65

square

#2A188E #8E1841 #7C8E18 #188E65

split-complementary

#2A188E #8E6518 #418E18

monochromatic

#0B0625 #1B0F5A #2A188E #3921C2 #5941DF

Accessibility & contrast

On white

12.96

#2A188E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#2A188E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A188E

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A188E	#FFFFFF	#000000	##FFFFFF
##2A188E	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003691

Deuteranopia (green-blind)

#002C8C

Tritanopia (blue-blind)

#003D54

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2a188e;
/* rgb */ color: rgb(42, 24, 142);
/* oklch */ color: oklch(33.4% 0.178 277.6);

Tailwind

colors: {
  custom: {
    50: '#7459b0',
    500: '#2a188e',
    950: '#000000',
  },
}

SCSS

$custom: #2a188e;
$custom-light: #7459b0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a188e",
  "rgb": {
    "r": 42,
    "g": 24,
    "b": 142
  },
  "hsl": {
    "h": 249.153,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.33371,
    "c": 0.17791,
    "h": 277.6
  },
  "luminance": 0.03099
}

Semantic roles & 50–950 ramp

primary

#2A188E

secondary

#ADC042

accent

#EE3AD2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #2A188E

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

Preview Lab → · Contrast checker → · Palette generator →