#312E9B#312E9B

#312E9B is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.3% C 0.171 H 275.9°. Best body text is #FFFFFF at 10.53:1 contrast (WCAG AA passes).

Color values

HEX	#312E9B
RGB	rgb(49, 46, 155)
HSL	hsl(242, 54%, 39%)
HSV	hsv(242, 70%, 61%)
CMYK	cmyk(68.4%, 70.3%, 0%, 39.2%)
CIE-LAB	lab(26.66, 36.69, -58.78)
CIE-LCH	lch(26.66, 69.29, 301.97°)
OKLab	oklab(38.32% 0.0176 -0.1698)
OKLCH	oklch(38.32% 0.171 275.9)
XYZ	xyz(8.1581, 4.9728, 31.5339)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#312E9B #989B2E

analogous

#2E629B #312E9B #672E9B

triadic

#312E9B #9B312E #2E9B31

tetradic

#312E9B #9B2E62 #989B2E #2E9B67

square

#312E9B #9B2E62 #989B2E #2E9B67

split-complementary

#312E9B #9B672E #629B2E

monochromatic

#13123D #22206C #312E9B #4440C6 #726FD4

Accessibility & contrast

On white

10.53

#312E9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#312E9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #312E9B

10.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##312E9B	#FFFFFF	#000000	##FFFFFF
##312E9B	1.00	10.53	1.99	10.53
#FFFFFF	10.53	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449E

Deuteranopia (green-blind)

#003A99

Tritanopia (blue-blind)

#004C61

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #312e9b;
/* rgb */ color: rgb(49, 46, 155);
/* oklch */ color: oklch(38.3% 0.171 275.9);

Tailwind

colors: {
  custom: {
    50: '#7868ba',
    500: '#312e9b',
    950: '#000000',
  },
}

SCSS

$custom: #312e9b;
$custom-light: #7868ba;
$custom-dark: #000000;

JSON

{
  "hex": "#312e9b",
  "rgb": {
    "r": 49,
    "g": 46,
    "b": 155
  },
  "hsl": {
    "h": 241.651,
    "s": 54.229,
    "l": 39.412
  },
  "oklch": {
    "l": 0.38317,
    "c": 0.17066,
    "h": 275.9
  },
  "luminance": 0.04974
}

Semantic roles & 50–950 ramp

primary

#312E9B

secondary

#B9BC69

accent

#DE4ADA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #312E9B

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

Preview Lab → · Contrast checker → · Palette generator →