#2A31A3#2A31A3

#2A31A3 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 39.2% C 0.179 H 272.0°. Best body text is #FFFFFF at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#2A31A3
RGB	rgb(42, 49, 163)
HSL	hsl(237, 59%, 40%)
HSV	hsv(237, 74%, 64%)
CMYK	cmyk(74.2%, 69.9%, 0%, 36.1%)
CIE-LAB	lab(27.66, 36.81, -62.01)
CIE-LCH	lch(27.66, 72.11, 300.70°)
OKLab	oklab(39.16% 0.0062 -0.1794)
OKLCH	oklch(39.16% 0.179 272)
XYZ	xyz(8.6618, 5.3323, 35.2160)
Luminance	0.0533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A31A3 #A39C2A

analogous

#2A6DA3 #2A31A3 #602AA3

triadic

#2A31A3 #A32A31 #31A32A

tetradic

#2A31A3 #A32A6D #A39C2A #2AA360

square

#2A31A3 #A32A6D #A39C2A #2AA360

split-complementary

#2A31A3 #A3602A #6DA32A

monochromatic

#111442 #1D2272 #2A31A3 #3D45CD #6E74DA

Accessibility & contrast

On white

10.16

#2A31A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#2A31A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A31A3

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A31A3	#FFFFFF	#000000	##FFFFFF
##2A31A3	1.00	10.16	2.07	10.16
#FFFFFF	10.16	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A6

Deuteranopia (green-blind)

#003CA1

Tritanopia (blue-blind)

#005066

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2a31a3;
/* rgb */ color: rgb(42, 49, 163);
/* oklch */ color: oklch(39.2% 0.179 272.0);

Tailwind

colors: {
  custom: {
    50: '#776abf',
    500: '#2a31a3',
    950: '#000000',
  },
}

SCSS

$custom: #2a31a3;
$custom-light: #776abf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a31a3",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 163
  },
  "hsl": {
    "h": 236.529,
    "s": 59.024,
    "l": 40.196
  },
  "oklch": {
    "l": 0.39158,
    "c": 0.17948,
    "h": 272
  },
  "luminance": 0.05333
}

Semantic roles & 50–950 ramp

primary

#2A31A3

secondary

#C0BB68

accent

#D946E2

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2A31A3

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

Preview Lab → · Contrast checker → · Palette generator →