#2A31A7#2A31A7

#2A31A7 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.6% C 0.185 H 271.8°. Best body text is #FFFFFF at 10.02:1 contrast (WCAG AA passes).

Color values

HEX	#2A31A7
RGB	rgb(42, 49, 167)
HSL	hsl(237, 60%, 41%)
HSV	hsv(237, 75%, 65%)
CMYK	cmyk(74.9%, 70.7%, 0%, 34.5%)
CIE-LAB	lab(28.06, 38.22, -63.78)
CIE-LCH	lch(28.06, 74.35, 300.94°)
OKLab	oklab(39.56% 0.0057 -0.1845)
OKLCH	oklch(39.56% 0.185 271.8)
XYZ	xyz(9.0259, 5.4779, 37.1334)
Luminance	0.0548 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A31A7 #A7A02A

analogous

#2A6FA7 #2A31A7 #612AA7

triadic

#2A31A7 #A72A31 #31A72A

tetradic

#2A31A7 #A72A6F #A7A02A #2AA761

square

#2A31A7 #A72A6F #A7A02A #2AA761

split-complementary

#2A31A7 #A7612A #6FA72A

monochromatic

#111445 #1E2376 #2A31A7 #3F47CF #7076DB

Accessibility & contrast

On white

10.02

#2A31A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#2A31A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A31A7

10.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A31A7	#FFFFFF	#000000	##FFFFFF
##2A31A7	1.00	10.02	2.10	10.02
#FFFFFF	10.02	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AB

Deuteranopia (green-blind)

#003CA5

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2a31a7;
/* rgb */ color: rgb(42, 49, 167);
/* oklch */ color: oklch(39.6% 0.185 271.8);

Tailwind

colors: {
  custom: {
    50: '#786ac2',
    500: '#2a31a7',
    950: '#000000',
  },
}

SCSS

$custom: #2a31a7;
$custom-light: #786ac2;
$custom-dark: #000000;

JSON

{
  "hex": "#2a31a7",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 167
  },
  "hsl": {
    "h": 236.64,
    "s": 59.809,
    "l": 40.98
  },
  "oklch": {
    "l": 0.39561,
    "c": 0.18462,
    "h": 271.8
  },
  "luminance": 0.05479
}

Semantic roles & 50–950 ramp

primary

#2A31A7

secondary

#C2BD6B

accent

#DA45E3

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2A31A7

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

Preview Lab → · Contrast checker → · Palette generator →