#312DA9#312DA9

#312DA9 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.6% C 0.190 H 274.8°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#312DA9
RGB	rgb(49, 45, 169)
HSL	hsl(242, 58%, 42%)
HSV	hsv(242, 73%, 66%)
CMYK	cmyk(71%, 73.4%, 0%, 33.7%)
CIE-LAB	lab(27.83, 42.02, -65.34)
CIE-LCH	lch(27.83, 77.69, 302.74°)
OKLab	oklab(39.57% 0.0159 -0.1889)
OKLCH	oklch(39.57% 0.19 274.8)
XYZ	xyz(9.3641, 5.3934, 38.0760)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312DA9 #A5A92D

analogous

#2D67A9 #312DA9 #6F2DA9

triadic

#312DA9 #A9312D #2DA931

tetradic

#312DA9 #A92D67 #A5A92D #2DA96F

square

#312DA9 #A92D67 #A5A92D #2DA96F

split-complementary

#312DA9 #A96F2D #67A92D

monochromatic

#151348 #232079 #312DA9 #4A46CE #7976DA

Accessibility & contrast

On white

10.10

#312DA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#312DA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DA9

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DA9	#FFFFFF	#000000	##FFFFFF
##312DA9	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047AD

Deuteranopia (green-blind)

#003CA7

Tritanopia (blue-blind)

#005068

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #312da9;
/* rgb */ color: rgb(49, 45, 169);
/* oklch */ color: oklch(39.6% 0.190 274.8);

Tailwind

colors: {
  custom: {
    50: '#7b67c4',
    500: '#312da9',
    950: '#000000',
  },
}

SCSS

$custom: #312da9;
$custom-light: #7b67c4;
$custom-dark: #000000;

JSON

{
  "hex": "#312da9",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 169
  },
  "hsl": {
    "h": 241.935,
    "s": 57.944,
    "l": 41.961
  },
  "oklch": {
    "l": 0.39573,
    "c": 0.18959,
    "h": 274.8
  },
  "luminance": 0.05394
}

Semantic roles & 50–950 ramp

primary

#312DA9

secondary

#C0C26F

accent

#E147DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312DA9

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

Preview Lab → · Contrast checker → · Palette generator →