#2A237C#2A237C

#2A237C is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.9% C 0.144 H 278.5°. Best body text is #FFFFFF at 12.88:1 contrast (WCAG AA passes).

Color values

HEX	#2A237C
RGB	rgb(42, 35, 124)
HSL	hsl(245, 56%, 31%)
HSV	hsv(245, 72%, 49%)
CMYK	cmyk(66.1%, 71.8%, 0%, 51.4%)
CIE-LAB	lab(20.63, 31.83, -49.38)
CIE-LCH	lch(20.63, 58.75, 302.81°)
OKLab	oklab(32.93% 0.0212 -0.1425)
OKLCH	oklch(32.93% 0.144 278.5)
XYZ	xyz(5.1928, 3.1491, 19.3991)
Luminance	0.0315 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A237C #757C23

analogous

#23487C #2A237C #56237C

triadic

#2A237C #7C2A23 #237C2A

tetradic

#2A237C #7C2348 #757C23 #237C56

square

#2A237C #7C2348 #757C23 #237C56

split-complementary

#2A237C #7C5623 #487C23

monochromatic

#0A081D #1A164C #2A237C #3A30AC #574DCD

Accessibility & contrast

On white

12.88

#2A237C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#2A237C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A237C

12.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A237C	#FFFFFF	#000000	##FFFFFF
##2A237C	1.00	12.88	1.63	12.88
#FFFFFF	12.88	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357F

Deuteranopia (green-blind)

#002E7A

Tritanopia (blue-blind)

#003B4C

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2a237c;
/* rgb */ color: rgb(42, 35, 124);
/* oklch */ color: oklch(32.9% 0.144 278.5);

Tailwind

colors: {
  custom: {
    50: '#6f5fa3',
    500: '#2a237c',
    950: '#000000',
  },
}

SCSS

$custom: #2a237c;
$custom-light: #6f5fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#2a237c",
  "rgb": {
    "r": 42,
    "g": 35,
    "b": 124
  },
  "hsl": {
    "h": 244.719,
    "s": 55.975,
    "l": 31.176
  },
  "oklch": {
    "l": 0.32932,
    "c": 0.14403,
    "h": 278.5
  },
  "luminance": 0.0315
}

Semantic roles & 50–950 ramp

primary

#2A237C

secondary

#A7AF4C

accent

#DF49D3

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#08040F

muted

#7B797F

Preview Lab

Preview with #2A237C

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

Preview Lab → · Contrast checker → · Palette generator →