#312AB6#312AB6

#312AB6 is a dark, highly saturated blue. Relative luminance 0.057; OKLCH L 40.5% C 0.208 H 274.1°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#312AB6
RGB	rgb(49, 42, 182)
HSL	hsl(243, 63%, 44%)
HSV	hsv(243, 77%, 71%)
CMYK	cmyk(73.1%, 76.9%, 0%, 28.6%)
CIE-LAB	lab(28.60, 47.92, -71.84)
CIE-LCH	lch(28.60, 86.36, 303.71°)
OKLab	oklab(40.53% 0.0148 -0.2078)
OKLCH	oklch(40.53% 0.208 274.1)
XYZ	xyz(10.5353, 5.6852, 44.7890)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312AB6 #AFB62A

analogous

#2A69B6 #312AB6 #772AB6

triadic

#312AB6 #B6312A #2AB631

tetradic

#312AB6 #B62A69 #AFB62A #2AB677

square

#312AB6 #B62A69 #AFB62A #2AB677

split-complementary

#312AB6 #B6772A #69B62A

monochromatic

#161353 #241F84 #312AB6 #4F48D5 #7F7AE0

Accessibility & contrast

On white

9.83

#312AB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#312AB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312AB6

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312AB6	#FFFFFF	#000000	##FFFFFF
##312AB6	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004ABA

Deuteranopia (green-blind)

#003DB4

Tritanopia (blue-blind)

#00546F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #312ab6;
/* rgb */ color: rgb(49, 42, 182);
/* oklch */ color: oklch(40.5% 0.208 274.1);

Tailwind

colors: {
  custom: {
    50: '#7e66cd',
    500: '#312ab6',
    950: '#000000',
  },
}

SCSS

$custom: #312ab6;
$custom-light: #7e66cd;
$custom-dark: #000000;

JSON

{
  "hex": "#312ab6",
  "rgb": {
    "r": 49,
    "g": 42,
    "b": 182
  },
  "hsl": {
    "h": 243,
    "s": 62.5,
    "l": 43.922
  },
  "oklch": {
    "l": 0.40528,
    "c": 0.20833,
    "h": 274.1
  },
  "luminance": 0.05686
}

Semantic roles & 50–950 ramp

primary

#312AB6

secondary

#C4C873

accent

#E642DD

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0614

muted

#7D7A82

Preview Lab

Preview with #312AB6

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

Preview Lab → · Contrast checker → · Palette generator →