#2A31A9#2A31A9

#2A31A9 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.8% C 0.187 H 271.7°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#2A31A9
RGB	rgb(42, 49, 169)
HSL	hsl(237, 60%, 41%)
HSV	hsv(237, 75%, 66%)
CMYK	cmyk(75.1%, 71%, 0%, 33.7%)
CIE-LAB	lab(28.25, 38.92, -64.65)
CIE-LCH	lch(28.25, 75.47, 301.05°)
OKLab	oklab(39.76% 0.0054 -0.1871)
OKLCH	oklch(39.76% 0.187 271.7)
XYZ	xyz(9.2122, 5.5525, 38.1147)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A31A9 #A9A22A

analogous

#2A71A9 #2A31A9 #632AA9

triadic

#2A31A9 #A92A31 #31A92A

tetradic

#2A31A9 #A92A71 #A9A22A #2AA963

square

#2A31A9 #A92A71 #A9A22A #2AA963

split-complementary

#2A31A9 #A9632A #71A92A

monochromatic

#121547 #1E2378 #2A31A9 #4148D0 #7277DC

Accessibility & contrast

On white

9.95

#2A31A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#2A31A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A31A9

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A31A9	#FFFFFF	#000000	##FFFFFF
##2A31A9	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AD

Deuteranopia (green-blind)

#003DA7

Tritanopia (blue-blind)

#005269

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2a31a9;
/* rgb */ color: rgb(42, 49, 169);
/* oklch */ color: oklch(39.8% 0.187 271.7);

Tailwind

colors: {
  custom: {
    50: '#786ac4',
    500: '#2a31a9',
    950: '#000000',
  },
}

SCSS

$custom: #2a31a9;
$custom-light: #786ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#2a31a9",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 169
  },
  "hsl": {
    "h": 236.693,
    "s": 60.19,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39764,
    "c": 0.18717,
    "h": 271.7
  },
  "luminance": 0.05553
}

Semantic roles & 50–950 ramp

primary

#2A31A9

secondary

#C3BE6C

accent

#DB44E3

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2A31A9

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

Preview Lab → · Contrast checker → · Palette generator →