#312DAD#312DAD

#312DAD is a dark, vivid blue. Relative luminance 0.055; OKLCH L 40.0% C 0.195 H 274.5°. Best body text is #FFFFFF at 9.96:1 contrast (WCAG AA passes).

Color values

HEX	#312DAD
RGB	rgb(49, 45, 173)
HSL	hsl(242, 59%, 43%)
HSV	hsv(242, 74%, 68%)
CMYK	cmyk(71.7%, 74%, 0%, 32.2%)
CIE-LAB	lab(28.24, 43.35, -67.07)
CIE-LCH	lch(28.24, 79.86, 302.87°)
OKLab	oklab(39.99% 0.0152 -0.194)
OKLCH	oklch(39.99% 0.195 274.5)
XYZ	xyz(9.7453, 5.5459, 40.0839)
Luminance	0.0555 (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

#312DAD #A9AD2D

analogous

#2D69AD #312DAD #712DAD

triadic

#312DAD #AD312D #2DAD31

tetradic

#312DAD #AD2D69 #A9AD2D #2DAD71

square

#312DAD #AD2D69 #A9AD2D #2DAD71

split-complementary

#312DAD #AD712D #69AD2D

monochromatic

#15144C #23207C #312DAD #4C48CF #7C78DC

Accessibility & contrast

On white

9.96

#312DAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#312DAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312DAD

9.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312DAD	#FFFFFF	#000000	##FFFFFF
##312DAD	1.00	9.96	2.11	9.96
#FFFFFF	9.96	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048B1

Deuteranopia (green-blind)

#003DAB

Tritanopia (blue-blind)

#00526A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #312dad;
/* rgb */ color: rgb(49, 45, 173);
/* oklch */ color: oklch(40.0% 0.195 274.5);

Tailwind

colors: {
  custom: {
    50: '#7c68c7',
    500: '#312dad',
    950: '#000000',
  },
}

SCSS

$custom: #312dad;
$custom-light: #7c68c7;
$custom-dark: #000000;

JSON

{
  "hex": "#312dad",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 173
  },
  "hsl": {
    "h": 241.875,
    "s": 58.716,
    "l": 42.745
  },
  "oklch": {
    "l": 0.39987,
    "c": 0.19455,
    "h": 274.5
  },
  "luminance": 0.05547
}

Semantic roles & 50–950 ramp

primary

#312DAD

secondary

#C1C472

accent

#E246DD

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #312DAD

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

Preview Lab → · Contrast checker → · Palette generator →