#312BAC#312BAC

#312BAC is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.6% C 0.195 H 274.8°. Best body text is #FFFFFF at 10.14:1 contrast (WCAG AA passes).

Color values

HEX	#312BAC
RGB	rgb(49, 43, 172)
HSL	hsl(243, 60%, 42%)
HSV	hsv(243, 75%, 67%)
CMYK	cmyk(71.5%, 75%, 0%, 32.5%)
CIE-LAB	lab(27.73, 44.14, -67.30)
CIE-LCH	lch(27.73, 80.49, 303.26°)
OKLab	oklab(39.6% 0.0164 -0.1946)
OKLCH	oklch(39.6% 0.195 274.8)
XYZ	xyz(9.5744, 5.3584, 39.5514)
Luminance	0.0536 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BAC #A6AC2B

analogous

#2B65AC #312BAC #722BAC

triadic

#312BAC #AC312B #2BAC31

tetradic

#312BAC #AC2B65 #A6AC2B #2BAC72

square

#312BAC #AC2B65 #A6AC2B #2BAC72

split-complementary

#312BAC #AC722B #65AC2B

monochromatic

#15134A #231F7B #312BAC #4A44D0 #7A75DC

Accessibility & contrast

On white

10.14

#312BAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#312BAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BAC

10.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BAC	#FFFFFF	#000000	##FFFFFF
##312BAC	1.00	10.14	2.07	10.14
#FFFFFF	10.14	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0047B0

Deuteranopia (green-blind)

#003BAA

Tritanopia (blue-blind)

#005069

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #312bac;
/* rgb */ color: rgb(49, 43, 172);
/* oklch */ color: oklch(39.6% 0.195 274.8);

Tailwind

colors: {
  custom: {
    50: '#7c66c6',
    500: '#312bac',
    950: '#000000',
  },
}

SCSS

$custom: #312bac;
$custom-light: #7c66c6;
$custom-dark: #000000;

JSON

{
  "hex": "#312bac",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 172
  },
  "hsl": {
    "h": 242.791,
    "s": 60,
    "l": 42.157
  },
  "oklch": {
    "l": 0.39598,
    "c": 0.19531,
    "h": 274.8
  },
  "luminance": 0.05359
}

Semantic roles & 50–950 ramp

primary

#312BAC

secondary

#C0C46F

accent

#E345DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312BAC

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

Preview Lab → · Contrast checker → · Palette generator →