#312C8A#312C8A

#312C8A is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.3% C 0.150 H 278.2°. Best body text is #FFFFFF at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#312C8A
RGB	rgb(49, 44, 138)
HSL	hsl(243, 52%, 36%)
HSV	hsv(243, 68%, 54%)
CMYK	cmyk(64.5%, 68.1%, 0%, 45.9%)
CIE-LAB	lab(24.60, 32.07, -51.66)
CIE-LCH	lch(24.60, 60.81, 301.84°)
OKLab	oklab(36.35% 0.0214 -0.1489)
OKLCH	oklch(36.35% 0.15 278.2)
XYZ	xyz(6.7533, 4.2888, 24.5118)
Luminance	0.0429 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312C8A #858A2C

analogous

#2C568A #312C8A #602C8A

triadic

#312C8A #8A312C #2C8A31

tetradic

#312C8A #8A2C56 #858A2C #2C8A60

square

#312C8A #8A2C56 #858A2C #2C8A60

split-complementary

#312C8A #8A602C #568A2C

monochromatic

#100E2D #211D5C #312C8A #413BB8 #6963CD

Accessibility & contrast

On white

11.30

#312C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#312C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312C8A

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312C8A	#FFFFFF	#000000	##FFFFFF
##312C8A	1.00	11.30	1.86	11.30
#FFFFFF	11.30	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E8D

Deuteranopia (green-blind)

#003788

Tritanopia (blue-blind)

#004457

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #312c8a;
/* rgb */ color: rgb(49, 44, 138);
/* oklch */ color: oklch(36.3% 0.150 278.2);

Tailwind

colors: {
  custom: {
    50: '#7466ad',
    500: '#312c8a',
    950: '#000000',
  },
}

SCSS

$custom: #312c8a;
$custom-light: #7466ad;
$custom-dark: #000000;

JSON

{
  "hex": "#312c8a",
  "rgb": {
    "r": 49,
    "g": 44,
    "b": 138
  },
  "hsl": {
    "h": 243.191,
    "s": 51.648,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36347,
    "c": 0.15045,
    "h": 278.2
  },
  "luminance": 0.04289
}

Semantic roles & 50–950 ramp

primary

#312C8A

secondary

#AFB45E

accent

#DB4DD4

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #312C8A

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

Preview Lab → · Contrast checker → · Palette generator →