#312AA7#312AA7

#312AA7 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.9% C 0.190 H 275.4°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#312AA7
RGB	rgb(49, 42, 167)
HSL	hsl(243, 60%, 41%)
HSV	hsv(243, 75%, 65%)
CMYK	cmyk(70.7%, 74.9%, 0%, 34.5%)
CIE-LAB	lab(27.01, 43.06, -65.48)
CIE-LCH	lch(27.01, 78.37, 303.33°)
OKLab	oklab(38.93% 0.0179 -0.1893)
OKLCH	oklch(38.93% 0.19 275.4)
XYZ	xyz(9.0673, 5.0981, 37.0579)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312AA7 #A0A72A

analogous

#2A61A7 #312AA7 #6F2AA7

triadic

#312AA7 #A7312A #2AA731

tetradic

#312AA7 #A72A61 #A0A72A #2AA76F

square

#312AA7 #A72A61 #A0A72A #2AA76F

split-complementary

#312AA7 #A76F2A #61A72A

monochromatic

#141145 #231E76 #312AA7 #473FCF #7670DB

Accessibility & contrast

On white

10.40

#312AA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#312AA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312AA7

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312AA7	#FFFFFF	#000000	##FFFFFF
##312AA7	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045AB

Deuteranopia (green-blind)

#003AA5

Tritanopia (blue-blind)

#004E66

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #312aa7;
/* rgb */ color: rgb(49, 42, 167);
/* oklch */ color: oklch(38.9% 0.190 275.4);

Tailwind

colors: {
  custom: {
    50: '#7b65c2',
    500: '#312aa7',
    950: '#000000',
  },
}

SCSS

$custom: #312aa7;
$custom-light: #7b65c2;
$custom-dark: #000000;

JSON

{
  "hex": "#312aa7",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 167
  },
  "hsl": {
    "h": 243.36,
    "s": 59.809,
    "l": 40.98
  },
  "oklch": {
    "l": 0.38933,
    "c": 0.19015,
    "h": 275.4
  },
  "luminance": 0.05099
}

Semantic roles & 50–950 ramp

primary

#312AA7

secondary

#BDC26B

accent

#E345DA

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312AA7

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

Preview Lab → · Contrast checker → · Palette generator →