#3131A2#3131A2

#3131A2 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.5% C 0.176 H 274.7°. Best body text is #FFFFFF at 10.04:1 contrast (WCAG AA passes).

Color values

HEX	#3131A2
RGB	rgb(49, 49, 162)
HSL	hsl(240, 54%, 41%)
HSV	hsv(240, 70%, 64%)
CMYK	cmyk(69.8%, 69.8%, 0%, 36.5%)
CIE-LAB	lab(28.00, 37.26, -60.83)
CIE-LCH	lch(28.00, 71.33, 301.49°)
OKLab	oklab(39.49% 0.0146 -0.1758)
OKLCH	oklch(39.49% 0.176 274.7)
XYZ	xyz(8.8844, 5.4574, 34.7606)
Luminance	0.0546 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3131A2 #A2A231

analogous

#316AA2 #3131A2 #6A31A2

triadic

#3131A2 #A23131 #31A231

tetradic

#3131A2 #A2316A #A2A231 #31A26A

square

#3131A2 #A2316A #A2A231 #31A26A

split-complementary

#3131A2 #A26A31 #6AA231

monochromatic

#151544 #232373 #3131A2 #4848C8 #7777D6

Accessibility & contrast

On white

10.04

#3131A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#3131A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3131A2

10.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3131A2	#FFFFFF	#000000	##FFFFFF
##3131A2	1.00	10.04	2.09	10.04
#FFFFFF	10.04	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047A5

Deuteranopia (green-blind)

#003DA0

Tritanopia (blue-blind)

#005065

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3131a2;
/* rgb */ color: rgb(49, 49, 162);
/* oklch */ color: oklch(39.5% 0.176 274.7);

Tailwind

colors: {
  custom: {
    50: '#796abf',
    500: '#3131a2',
    950: '#000000',
  },
}

SCSS

$custom: #3131a2;
$custom-light: #796abf;
$custom-dark: #000000;

JSON

{
  "hex": "#3131a2",
  "rgb": {
    "r": 49,
    "g": 49,
    "b": 162
  },
  "hsl": {
    "h": 240,
    "s": 53.555,
    "l": 41.373
  },
  "oklch": {
    "l": 0.39488,
    "c": 0.17636,
    "h": 274.7
  },
  "luminance": 0.05458
}

Semantic roles & 50–950 ramp

primary

#3131A2

secondary

#BEBE71

accent

#DD4BDD

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #3131A2

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

Preview Lab → · Contrast checker → · Palette generator →