#312D9E#312D9E

#312D9E is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.5% C 0.176 H 275.8°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#312D9E
RGB	rgb(49, 45, 158)
HSL	hsl(242, 56%, 40%)
HSV	hsv(242, 72%, 62%)
CMYK	cmyk(69%, 71.5%, 0%, 38%)
CIE-LAB	lab(26.73, 38.32, -60.49)
CIE-LCH	lch(26.73, 71.60, 302.35°)
OKLab	oklab(38.46% 0.0178 -0.1748)
OKLCH	oklch(38.46% 0.176 275.8)
XYZ	xyz(8.3745, 4.9976, 32.8644)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312D9E #9A9E2D

analogous

#2D619E #312D9E #6A2D9E

triadic

#312D9E #9E312D #2D9E31

tetradic

#312D9E #9E2D61 #9A9E2D #2D9E6A

square

#312D9E #9E2D61 #9A9E2D #2D9E6A

split-complementary

#312D9E #9E6A2D #619E2D

monochromatic

#13123F #221F6E #312D9E #4540C9 #736FD6

Accessibility & contrast

On white

10.50

#312D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#312D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312D9E

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312D9E	#FFFFFF	#000000	##FFFFFF
##312D9E	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044A1

Deuteranopia (green-blind)

#003A9C

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #312d9e;
/* rgb */ color: rgb(49, 45, 158);
/* oklch */ color: oklch(38.5% 0.176 275.8);

Tailwind

colors: {
  custom: {
    50: '#7967bc',
    500: '#312d9e',
    950: '#000000',
  },
}

SCSS

$custom: #312d9e;
$custom-light: #7967bc;
$custom-dark: #000000;

JSON

{
  "hex": "#312d9e",
  "rgb": {
    "r": 49,
    "g": 45,
    "b": 158
  },
  "hsl": {
    "h": 242.124,
    "s": 55.665,
    "l": 39.804
  },
  "oklch": {
    "l": 0.38456,
    "c": 0.17566,
    "h": 275.8
  },
  "luminance": 0.04998
}

Semantic roles & 50–950 ramp

primary

#312D9E

secondary

#BABD69

accent

#DF49DA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #312D9E

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

Preview Lab → · Contrast checker → · Palette generator →