#312CB9#312CB9

#312CB9 is a dark, highly saturated blue. Relative luminance 0.060; OKLCH L 41.1% C 0.210 H 273.6°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#312CB9
RGB	rgb(49, 44, 185)
HSL	hsl(242, 62%, 45%)
HSV	hsv(242, 76%, 73%)
CMYK	cmyk(73.5%, 76.2%, 0%, 27.5%)
CIE-LAB	lab(29.30, 47.82, -72.47)
CIE-LCH	lch(29.30, 86.82, 303.42°)
OKLab	oklab(41.11% 0.0133 -0.2097)
OKLCH	oklch(41.11% 0.21 273.6)
XYZ	xyz(10.9213, 5.9560, 46.4636)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312CB9 #B4B92C

analogous

#2C6DB9 #312CB9 #782CB9

triadic

#312CB9 #B9312C #2CB931

tetradic

#312CB9 #B92C6D #B4B92C #2CB978

square

#312CB9 #B92C6D #B4B92C #2CB978

split-complementary

#312CB9 #B9782C #6DB92C

monochromatic

#171456 #242088 #312CB9 #524DD5 #827FE1

Accessibility & contrast

On white

9.58

#312CB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#312CB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312CB9

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312CB9	#FFFFFF	#000000	##FFFFFF
##312CB9	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CBD

Deuteranopia (green-blind)

#003EB7

Tritanopia (blue-blind)

#005671

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #312cb9;
/* rgb */ color: rgb(49, 44, 185);
/* oklch */ color: oklch(41.1% 0.210 273.6);

Tailwind

colors: {
  custom: {
    50: '#7f68cf',
    500: '#312cb9',
    950: '#000000',
  },
}

SCSS

$custom: #312cb9;
$custom-light: #7f68cf;
$custom-dark: #000000;

JSON

{
  "hex": "#312cb9",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 185
  },
  "hsl": {
    "h": 242.128,
    "s": 61.572,
    "l": 44.902
  },
  "oklch": {
    "l": 0.41114,
    "c": 0.21008,
    "h": 273.6
  },
  "luminance": 0.05957
}

Semantic roles & 50–950 ramp

primary

#312CB9

secondary

#C6C978

accent

#E543DF

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #312CB9

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

Preview Lab → · Contrast checker → · Palette generator →