#313E91#313E91

#313E91 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.137 H 272.1°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#313E91
RGB	rgb(49, 62, 145)
HSL	hsl(232, 49%, 38%)
HSV	hsv(232, 66%, 57%)
CMYK	cmyk(66.2%, 57.2%, 0%, 43.1%)
CIE-LAB	lab(29.77, 22.74, -47.58)
CIE-LCH	lch(29.77, 52.73, 295.55°)
OKLab	oklab(40.33% 0.0049 -0.1368)
OKLCH	oklch(40.33% 0.137 272.1)
XYZ	xyz(8.0984, 6.1418, 27.5413)
Luminance	0.0614 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E91 #918431

analogous

#316E91 #313E91 #543191

triadic

#313E91 #91313E #3E9131

tetradic

#313E91 #91316E #918431 #319154

square

#313E91 #91316E #918431 #319154

split-complementary

#313E91 #915431 #6E9131

monochromatic

#121736 #222A63 #313E91 #4152BF #6E7BCE

Accessibility & contrast

On white

9.42

#313E91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#313E91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E91

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E91	#FFFFFF	#000000	##FFFFFF
##313E91	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B94

Deuteranopia (green-blind)

#00428F

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #313e91;
/* rgb */ color: rgb(49, 62, 145);
/* oklch */ color: oklch(40.3% 0.137 272.1);

Tailwind

colors: {
  custom: {
    50: '#7473b2',
    500: '#313e91',
    950: '#000000',
  },
}

SCSS

$custom: #313e91;
$custom-light: #7473b2;
$custom-dark: #000000;

JSON

{
  "hex": "#313e91",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 145
  },
  "hsl": {
    "h": 231.875,
    "s": 49.485,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40334,
    "c": 0.13687,
    "h": 272.1
  },
  "luminance": 0.06143
}

Semantic roles & 50–950 ramp

primary

#313E91

secondary

#B6AB68

accent

#C64FD9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313E91

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

Preview Lab → · Contrast checker → · Palette generator →