#312BB6#312BB6

#312BB6 is a dark, highly saturated blue. Relative luminance 0.058; OKLCH L 40.7% C 0.207 H 274.0°. Best body text is #FFFFFF at 9.76:1 contrast (WCAG AA passes).

Color values

HEX	#312BB6
RGB	rgb(49, 43, 182)
HSL	hsl(243, 62%, 44%)
HSV	hsv(243, 76%, 71%)
CMYK	cmyk(73.1%, 76.4%, 0%, 28.6%)
CIE-LAB	lab(28.79, 47.39, -71.53)
CIE-LCH	lch(28.79, 85.80, 303.52°)
OKLab	oklab(40.66% 0.0143 -0.2069)
OKLCH	oklch(40.66% 0.207 274)
XYZ	xyz(10.5712, 5.7571, 44.8010)
Luminance	0.0576 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BB6 #B0B62B

analogous

#2B6BB6 #312BB6 #772BB6

triadic

#312BB6 #B6312B #2BB631

tetradic

#312BB6 #B62B6B #B0B62B #2BB677

square

#312BB6 #B62B6B #B0B62B #2BB677

split-complementary

#312BB6 #B6772B #6BB62B

monochromatic

#161453 #241F84 #312BB6 #504AD4 #807BE0

Accessibility & contrast

On white

9.76

#312BB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#312BB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BB6

9.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BB6	#FFFFFF	#000000	##FFFFFF
##312BB6	1.00	9.76	2.15	9.76
#FFFFFF	9.76	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABA

Deuteranopia (green-blind)

#003DB4

Tritanopia (blue-blind)

#00546F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #312bb6;
/* rgb */ color: rgb(49, 43, 182);
/* oklch */ color: oklch(40.7% 0.207 274.0);

Tailwind

colors: {
  custom: {
    50: '#7e67cd',
    500: '#312bb6',
    950: '#000000',
  },
}

SCSS

$custom: #312bb6;
$custom-light: #7e67cd;
$custom-dark: #000000;

JSON

{
  "hex": "#312bb6",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 182
  },
  "hsl": {
    "h": 242.59,
    "s": 61.778,
    "l": 44.118
  },
  "oklch": {
    "l": 0.4066,
    "c": 0.20742,
    "h": 274
  },
  "luminance": 0.05758
}

Semantic roles & 50–950 ramp

primary

#312BB6

secondary

#C5C875

accent

#E543DE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #312BB6

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

Preview Lab → · Contrast checker → · Palette generator →