#312CAB#312CAB

#312CAB is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.6% C 0.193 H 274.8°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#312CAB
RGB	rgb(49, 44, 171)
HSL	hsl(242, 59%, 42%)
HSV	hsv(242, 74%, 67%)
CMYK	cmyk(71.3%, 74.3%, 0%, 32.9%)
CIE-LAB	lab(27.83, 43.25, -66.54)
CIE-LCH	lch(27.83, 79.36, 303.02°)
OKLab	oklab(39.64% 0.0161 -0.1924)
OKLCH	oklch(39.64% 0.193 274.8)
XYZ	xyz(9.5156, 5.3937, 39.0598)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312CAB #A6AB2C

analogous

#2C67AB #312CAB #702CAB

triadic

#312CAB #AB312C #2CAB31

tetradic

#312CAB #AB2C67 #A6AB2C #2CAB70

square

#312CAB #AB2C67 #A6AB2C #2CAB70

split-complementary

#312CAB #AB702C #67AB2C

monochromatic

#15134A #231F7A #312CAB #4A45CF #7A76DC

Accessibility & contrast

On white

10.10

#312CAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#312CAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312CAB

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312CAB	#FFFFFF	#000000	##FFFFFF
##312CAB	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)

#0047AF

Deuteranopia (green-blind)

#003CA9

Tritanopia (blue-blind)

#005069

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #312cab;
/* rgb */ color: rgb(49, 44, 171);
/* oklch */ color: oklch(39.6% 0.193 274.8);

Tailwind

colors: {
  custom: {
    50: '#7c67c5',
    500: '#312cab',
    950: '#000000',
  },
}

SCSS

$custom: #312cab;
$custom-light: #7c67c5;
$custom-dark: #000000;

JSON

{
  "hex": "#312cab",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 171
  },
  "hsl": {
    "h": 242.362,
    "s": 59.07,
    "l": 42.157
  },
  "oklch": {
    "l": 0.39635,
    "c": 0.19309,
    "h": 274.8
  },
  "luminance": 0.05395
}

Semantic roles & 50–950 ramp

primary

#312CAB

secondary

#C0C36F

accent

#E246DC

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312CAB

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

Preview Lab → · Contrast checker → · Palette generator →