#312BC4#312BC4

#312BC4 is a dark, highly saturated blue. Relative luminance 0.064; OKLCH L 42.2% C 0.224 H 272.9°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#312BC4
RGB	rgb(49, 43, 196)
HSL	hsl(242, 64%, 47%)
HSV	hsv(242, 78%, 77%)
CMYK	cmyk(75%, 78.1%, 0%, 23.1%)
CIE-LAB	lab(30.32, 51.83, -77.28)
CIE-LCH	lch(30.32, 93.05, 303.85°)
OKLab	oklab(42.18% 0.0113 -0.2236)
OKLCH	oklch(42.18% 0.224 272.9)
XYZ	xyz(12.0910, 6.3650, 52.8052)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BC4 #BEC42B

analogous

#2B72C4 #312BC4 #7E2BC4

triadic

#312BC4 #C4312B #2BC431

tetradic

#312BC4 #C42B72 #BEC42B #2BC47E

square

#312BC4 #C42B72 #BEC42B #2BC47E

split-complementary

#312BC4 #C47E2B #72C42B

monochromatic

#181560 #242092 #312BC4 #5853D9 #8985E4

Accessibility & contrast

On white

9.24

#312BC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#312BC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BC4

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BC4	#FFFFFF	#000000	##FFFFFF
##312BC4	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FC8

Deuteranopia (green-blind)

#0040C1

Tritanopia (blue-blind)

#005A77

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #312bc4;
/* rgb */ color: rgb(49, 43, 196);
/* oklch */ color: oklch(42.2% 0.224 272.9);

Tailwind

colors: {
  custom: {
    50: '#8268d7',
    500: '#312bc4',
    950: '#000000',
  },
}

SCSS

$custom: #312bc4;
$custom-light: #8268d7;
$custom-dark: #000000;

JSON

{
  "hex": "#312bc4",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 196
  },
  "hsl": {
    "h": 242.353,
    "s": 64.017,
    "l": 46.863
  },
  "oklch": {
    "l": 0.42178,
    "c": 0.22392,
    "h": 272.9
  },
  "luminance": 0.06366
}

Semantic roles & 50–950 ramp

primary

#312BC4

secondary

#CACE7D

accent

#E741E1

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0C0615

muted

#7D7A83

Preview Lab

Preview with #312BC4

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

Preview Lab → · Contrast checker → · Palette generator →