#2A37AB#2A37AB

#2A37AB is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.0% C 0.183 H 270.6°. Best body text is #FFFFFF at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#2A37AB
RGB	rgb(42, 55, 171)
HSL	hsl(234, 61%, 42%)
HSV	hsv(234, 75%, 67%)
CMYK	cmyk(75.4%, 67.8%, 0%, 32.9%)
CIE-LAB	lab(29.82, 35.90, -63.27)
CIE-LCH	lch(29.82, 72.75, 299.57°)
OKLab	oklab(40.96% 0.0019 -0.1831)
OKLCH	oklch(40.96% 0.183 270.6)
XYZ	xyz(9.6692, 6.1639, 39.2003)
Luminance	0.0617 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A37AB #AB9E2A

analogous

#2A78AB #2A37AB #5D2AAB

triadic

#2A37AB #AB2A37 #37AB2A

tetradic

#2A37AB #AB2A78 #AB9E2A #2AAB5D

square

#2A37AB #AB2A78 #AB9E2A #2AAB5D

split-complementary

#2A37AB #AB5D2A #78AB2A

monochromatic

#121749 #1E277A #2A37AB #4250D1 #737DDD

Accessibility & contrast

On white

9.40

#2A37AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#2A37AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A37AB

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A37AB	#FFFFFF	#000000	##FFFFFF
##2A37AB	1.00	9.40	2.23	9.40
#FFFFFF	9.40	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAF

Deuteranopia (green-blind)

#0040A9

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2a37ab;
/* rgb */ color: rgb(42, 55, 171);
/* oklch */ color: oklch(41.0% 0.183 270.6);

Tailwind

colors: {
  custom: {
    50: '#786ec5',
    500: '#2a37ab',
    950: '#000000',
  },
}

SCSS

$custom: #2a37ab;
$custom-light: #786ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#2a37ab",
  "rgb": {
    "r": 42,
    "g": 55,
    "b": 171
  },
  "hsl": {
    "h": 233.953,
    "s": 60.563,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40957,
    "c": 0.18307,
    "h": 270.6
  },
  "luminance": 0.06165
}

Semantic roles & 50–950 ramp

primary

#2A37AB

secondary

#C4BB6D

accent

#D444E4

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2A37AB

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

Preview Lab → · Contrast checker → · Palette generator →