#312BC9#312BC9

#312BC9 is a dark, highly saturated blue. Relative luminance 0.066; OKLCH L 42.7% C 0.230 H 272.6°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#312BC9
RGB	rgb(49, 43, 201)
HSL	hsl(242, 65%, 48%)
HSV	hsv(242, 79%, 79%)
CMYK	cmyk(75.6%, 78.6%, 0%, 21.2%)
CIE-LAB	lab(30.87, 53.39, -79.29)
CIE-LCH	lch(30.87, 95.59, 303.95°)
OKLab	oklab(42.73% 0.0102 -0.2295)
OKLCH	oklch(42.73% 0.23 272.6)
XYZ	xyz(12.6696, 6.5964, 55.8525)
Luminance	0.0660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312BC9 #C3C92B

analogous

#2B74C9 #312BC9 #802BC9

triadic

#312BC9 #C9312B #2BC931

tetradic

#312BC9 #C92B74 #C3C92B #2BC980

square

#312BC9 #C92B74 #C3C92B #2BC980

split-complementary

#312BC9 #C9802B #74C92B

monochromatic

#181564 #252097 #312BC9 #5B56DB #8C89E6

Accessibility & contrast

On white

9.05

#312BC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#312BC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312BC9

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312BC9	#FFFFFF	#000000	##FFFFFF
##312BC9	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050CD

Deuteranopia (green-blind)

#0041C6

Tritanopia (blue-blind)

#005C7A

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #312bc9;
/* rgb */ color: rgb(49, 43, 201);
/* oklch */ color: oklch(42.7% 0.230 272.6);

Tailwind

colors: {
  custom: {
    50: '#8368db',
    500: '#312bc9',
    950: '#000000',
  },
}

SCSS

$custom: #312bc9;
$custom-light: #8368db;
$custom-dark: #000000;

JSON

{
  "hex": "#312bc9",
  "rgb": {
    "r": 49,
    "g": 43,
    "b": 201
  },
  "hsl": {
    "h": 242.278,
    "s": 64.754,
    "l": 47.843
  },
  "oklch": {
    "l": 0.42728,
    "c": 0.22969,
    "h": 272.6
  },
  "luminance": 0.06598
}

Semantic roles & 50–950 ramp

primary

#312BC9

secondary

#CCCF80

accent

#E840E1

background

#F8F6FD

surface

#F0EBFB

border

#CBC6D4

text

#0D0615

muted

#7D7A83

Preview Lab

Preview with #312BC9

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

Preview Lab → · Contrast checker → · Palette generator →