#2D31A5#2D31A5

#2D31A5 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.5% C 0.181 H 273.0°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#2D31A5
RGB	rgb(45, 49, 165)
HSL	hsl(238, 57%, 41%)
HSV	hsv(238, 73%, 65%)
CMYK	cmyk(72.7%, 70.3%, 0%, 35.3%)
CIE-LAB	lab(28.03, 37.84, -62.60)
CIE-LCH	lch(28.03, 73.14, 301.15°)
OKLab	oklab(39.53% 0.0094 -0.181)
OKLCH	oklch(39.53% 0.181 273)
XYZ	xyz(8.9698, 5.4702, 36.1732)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D31A5 #A5A12D

analogous

#2D6DA5 #2D31A5 #652DA5

triadic

#2D31A5 #A52D31 #31A52D

tetradic

#2D31A5 #A52D6D #A5A12D #2DA565

square

#2D31A5 #A52D6D #A5A12D #2DA565

split-complementary

#2D31A5 #A5652D #6DA52D

monochromatic

#131445 #202375 #2D31A5 #4348CC #7377D9

Accessibility & contrast

On white

10.03

#2D31A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2D31A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D31A5

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D31A5	#FFFFFF	#000000	##FFFFFF
##2D31A5	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048A9

Deuteranopia (green-blind)

#003CA3

Tritanopia (blue-blind)

#005167

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2d31a5;
/* rgb */ color: rgb(45, 49, 165);
/* oklch */ color: oklch(39.5% 0.181 273.0);

Tailwind

colors: {
  custom: {
    50: '#786ac1',
    500: '#2d31a5',
    950: '#000000',
  },
}

SCSS

$custom: #2d31a5;
$custom-light: #786ac1;
$custom-dark: #000000;

JSON

{
  "hex": "#2d31a5",
  "rgb": {
    "r": 45,
    "g": 49,
    "b": 165
  },
  "hsl": {
    "h": 238,
    "s": 57.143,
    "l": 41.176
  },
  "oklch": {
    "l": 0.39533,
    "c": 0.18126,
    "h": 273
  },
  "luminance": 0.05471
}

Semantic roles & 50–950 ramp

primary

#2D31A5

secondary

#C1BE6D

accent

#DB47E0

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2D31A5

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

Preview Lab → · Contrast checker → · Palette generator →