#312A87#312A87

#312A87 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.7% C 0.149 H 279.1°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#312A87
RGB	rgb(49, 42, 135)
HSL	hsl(245, 53%, 35%)
HSV	hsv(245, 69%, 53%)
CMYK	cmyk(63.7%, 68.9%, 0%, 47.1%)
CIE-LAB	lab(23.86, 32.30, -51.00)
CIE-LCH	lch(23.86, 60.37, 302.35°)
OKLab	oklab(35.73% 0.0235 -0.147)
OKLCH	oklch(35.73% 0.149 279.1)
XYZ	xyz(6.4664, 4.0577, 23.3594)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312A87 #80872A

analogous

#2A5287 #312A87 #602A87

triadic

#312A87 #87312A #2A8731

tetradic

#312A87 #872A52 #80872A #2A8760

square

#312A87 #872A52 #80872A #2A8760

split-complementary

#312A87 #87602A #52872A

monochromatic

#0F0D2A #201B58 #312A87 #4239B6 #675ECD

Accessibility & contrast

On white

11.59

#312A87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#312A87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312A87

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312A87	#FFFFFF	#000000	##FFFFFF
##312A87	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C8A

Deuteranopia (green-blind)

#003585

Tritanopia (blue-blind)

#004255

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #312a87;
/* rgb */ color: rgb(49, 42, 135);
/* oklch */ color: oklch(35.7% 0.149 279.1);

Tailwind

colors: {
  custom: {
    50: '#7464ab',
    500: '#312a87',
    950: '#000000',
  },
}

SCSS

$custom: #312a87;
$custom-light: #7464ab;
$custom-dark: #000000;

JSON

{
  "hex": "#312a87",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 135
  },
  "hsl": {
    "h": 244.516,
    "s": 52.542,
    "l": 34.706
  },
  "oklch": {
    "l": 0.35725,
    "c": 0.14887,
    "h": 279.1
  },
  "luminance": 0.04058
}

Semantic roles & 50–950 ramp

primary

#312A87

secondary

#ACB35A

accent

#DC4CD1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090510

muted

#7B7A7F

Preview Lab

Preview with #312A87

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

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