#313E90#313E90

#313E90 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.135 H 272.1°. Best body text is #FFFFFF at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#313E90
RGB	rgb(49, 62, 144)
HSL	hsl(232, 49%, 38%)
HSV	hsv(232, 66%, 56%)
CMYK	cmyk(66%, 56.9%, 0%, 43.5%)
CIE-LAB	lab(29.69, 22.38, -47.09)
CIE-LCH	lch(29.69, 52.13, 295.42°)
OKLab	oklab(40.25% 0.0049 -0.1353)
OKLCH	oklch(40.25% 0.135 272.1)
XYZ	xyz(8.0216, 6.1111, 27.1370)
Luminance	0.0611 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E90 #908331

analogous

#316E90 #313E90 #533190

triadic

#313E90 #90313E #3E9031

tetradic

#313E90 #90316E #908331 #319053

square

#313E90 #90316E #908331 #319053

split-complementary

#313E90 #905331 #6E9031

monochromatic

#121735 #212A62 #313E90 #4152BE #6E7BCE

Accessibility & contrast

On white

9.45

#313E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#313E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E90

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E90	#FFFFFF	#000000	##FFFFFF
##313E90	1.00	9.45	2.22	9.45
#FFFFFF	9.45	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A93

Deuteranopia (green-blind)

#00428E

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #313e90;
/* rgb */ color: rgb(49, 62, 144);
/* oklch */ color: oklch(40.3% 0.135 272.1);

Tailwind

colors: {
  custom: {
    50: '#7473b1',
    500: '#313e90',
    950: '#000000',
  },
}

SCSS

$custom: #313e90;
$custom-light: #7473b1;
$custom-dark: #000000;

JSON

{
  "hex": "#313e90",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 144
  },
  "hsl": {
    "h": 231.789,
    "s": 49.223,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40253,
    "c": 0.13543,
    "h": 272.1
  },
  "luminance": 0.06112
}

Semantic roles & 50–950 ramp

primary

#313E90

secondary

#B5AB68

accent

#C64FD9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313E90

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

Preview Lab → · Contrast checker → · Palette generator →