#312E91#312E91

#312E91 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.4% C 0.157 H 276.9°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#312E91
RGB	rgb(49, 46, 145)
HSL	hsl(242, 52%, 37%)
HSV	hsv(242, 68%, 57%)
CMYK	cmyk(66.2%, 68.3%, 0%, 43.1%)
CIE-LAB	lab(25.72, 33.24, -54.18)
CIE-LCH	lch(25.72, 63.56, 301.53°)
OKLab	oklab(37.35% 0.0189 -0.1563)
OKLCH	oklch(37.35% 0.157 276.9)
XYZ	xyz(7.3528, 4.6507, 27.2928)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312E91 #8E912E

analogous

#2E5D91 #312E91 #622E91

triadic

#312E91 #91312E #2E9131

tetradic

#312E91 #912E5D #8E912E #2E9162

square

#312E91 #912E5D #8E912E #2E9162

split-complementary

#312E91 #91622E #5D912E

monochromatic

#121134 #211F63 #312E91 #413DBF #6D6AD0

Accessibility & contrast

On white

10.88

#312E91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#312E91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312E91

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312E91	#FFFFFF	#000000	##FFFFFF
##312E91	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004194

Deuteranopia (green-blind)

#00398F

Tritanopia (blue-blind)

#00485B

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #312e91;
/* rgb */ color: rgb(49, 46, 145);
/* oklch */ color: oklch(37.4% 0.157 276.9);

Tailwind

colors: {
  custom: {
    50: '#7667b2',
    500: '#312e91',
    950: '#000000',
  },
}

SCSS

$custom: #312e91;
$custom-light: #7667b2;
$custom-dark: #000000;

JSON

{
  "hex": "#312e91",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 145
  },
  "hsl": {
    "h": 241.818,
    "s": 51.832,
    "l": 37.451
  },
  "oklch": {
    "l": 0.3735,
    "c": 0.15744,
    "h": 276.9
  },
  "luminance": 0.04651
}

Semantic roles & 50–950 ramp

primary

#312E91

secondary

#B4B764

accent

#DB4DD7

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #312E91

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

Preview Lab → · Contrast checker → · Palette generator →