#312E8B#312E8B

#312E8B is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.8% C 0.149 H 277.6°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#312E8B
RGB	rgb(49, 46, 139)
HSL	hsl(242, 50%, 36%)
HSV	hsv(242, 67%, 55%)
CMYK	cmyk(64.7%, 66.9%, 0%, 45.5%)
CIE-LAB	lab(25.17, 31.15, -51.36)
CIE-LCH	lch(25.17, 60.06, 301.24°)
OKLab	oklab(36.79% 0.0196 -0.148)
OKLCH	oklch(36.79% 0.149 277.6)
XYZ	xyz(6.9023, 4.4705, 24.9202)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312E8B #888B2E

analogous

#2E5A8B #312E8B #602E8B

triadic

#312E8B #8B312E #2E8B31

tetradic

#312E8B #8B2E5A #888B2E #2E8B60

square

#312E8B #8B2E5A #888B2E #2E8B60

split-complementary

#312E8B #8B602E #5A8B2E

monochromatic

#11102F #211F5D #312E8B #413DB9 #6A67CD

Accessibility & contrast

On white

11.09

#312E8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#312E8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312E8B

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312E8B	#FFFFFF	#000000	##FFFFFF
##312E8B	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408E

Deuteranopia (green-blind)

#003889

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #312e8b;
/* rgb */ color: rgb(49, 46, 139);
/* oklch */ color: oklch(36.8% 0.149 277.6);

Tailwind

colors: {
  custom: {
    50: '#7467ae',
    500: '#312e8b',
    950: '#000000',
  },
}

SCSS

$custom: #312e8b;
$custom-light: #7467ae;
$custom-dark: #000000;

JSON

{
  "hex": "#312e8b",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 139
  },
  "hsl": {
    "h": 241.935,
    "s": 50.27,
    "l": 36.275
  },
  "oklch": {
    "l": 0.36785,
    "c": 0.14931,
    "h": 277.6
  },
  "luminance": 0.04471
}

Semantic roles & 50–950 ramp

primary

#312E8B

secondary

#B1B361

accent

#DA4ED5

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312E8B

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

Preview Lab → · Contrast checker → · Palette generator →