#312A8D#312A8D

#312A8D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.3% C 0.157 H 278.3°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#312A8D
RGB	rgb(49, 42, 141)
HSL	hsl(244, 54%, 36%)
HSV	hsv(244, 70%, 55%)
CMYK	cmyk(65.2%, 70.2%, 0%, 44.7%)
CIE-LAB	lab(24.42, 34.36, -53.82)
CIE-LCH	lch(24.42, 63.85, 302.55°)
OKLab	oklab(36.3% 0.0227 -0.1553)
OKLCH	oklch(36.3% 0.157 278.3)
XYZ	xyz(6.9008, 4.2314, 25.6472)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312A8D #868D2A

analogous

#2A548D #312A8D #622A8D

triadic

#312A8D #8D312A #2A8D31

tetradic

#312A8D #8D2A54 #868D2A #2A8D62

square

#312A8D #8D2A54 #868D2A #2A8D62

split-complementary

#312A8D #8D622A #548D2A

monochromatic

#100E2F #211C5E #312A8D #4138BC #6961D0

Accessibility & contrast

On white

11.37

#312A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#312A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312A8D

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312A8D	#FFFFFF	#000000	##FFFFFF
##312A8D	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E90

Deuteranopia (green-blind)

#00368B

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #312a8d;
/* rgb */ color: rgb(49, 42, 141);
/* oklch */ color: oklch(36.3% 0.157 278.3);

Tailwind

colors: {
  custom: {
    50: '#7564af',
    500: '#312a8d',
    950: '#000000',
  },
}

SCSS

$custom: #312a8d;
$custom-light: #7564af;
$custom-dark: #000000;

JSON

{
  "hex": "#312a8d",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 141
  },
  "hsl": {
    "h": 244.242,
    "s": 54.098,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36302,
    "c": 0.1569,
    "h": 278.3
  },
  "luminance": 0.04232
}

Semantic roles & 50–950 ramp

primary

#312A8D

secondary

#B0B65D

accent

#DD4AD3

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#090510

muted

#7B7A7F

Preview Lab

Preview with #312A8D

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

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