#313CB9#313CB9

#313CB9 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.5% C 0.194 H 271.5°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#313CB9
RGB	rgb(49, 60, 185)
HSL	hsl(235, 58%, 46%)
HSV	hsv(235, 74%, 73%)
CMYK	cmyk(73.5%, 67.6%, 0%, 27.5%)
CIE-LAB	lab(32.67, 38.49, -66.92)
CIE-LCH	lch(32.67, 77.19, 299.91°)
OKLab	oklab(43.53% 0.005 -0.1935)
OKLCH	oklch(43.53% 0.194 271.5)
XYZ	xyz(11.6365, 7.3863, 46.7020)
Luminance	0.0739 (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

#313CB9 #B9AE31

analogous

#3180B9 #313CB9 #6A31B9

triadic

#313CB9 #B9313C #3CB931

tetradic

#313CB9 #B93180 #B9AE31 #31B96A

square

#313CB9 #B93180 #B9AE31 #31B96A

split-complementary

#313CB9 #B96A31 #80B931

monochromatic

#171D58 #242C89 #313CB9 #555FD2 #868DDF

Accessibility & contrast

On white

8.48

#313CB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#313CB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313CB9

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313CB9	#FFFFFF	#000000	##FFFFFF
##313CB9	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BD

Deuteranopia (green-blind)

#0046B7

Tritanopia (blue-blind)

#005E75

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #313cb9;
/* rgb */ color: rgb(49, 60, 185);
/* oklch */ color: oklch(43.5% 0.194 271.5);

Tailwind

colors: {
  custom: {
    50: '#7d72cf',
    500: '#313cb9',
    950: '#000000',
  },
}

SCSS

$custom: #313cb9;
$custom-light: #7d72cf;
$custom-dark: #000000;

JSON

{
  "hex": "#313cb9",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 185
  },
  "hsl": {
    "h": 235.147,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43526,
    "c": 0.19359,
    "h": 271.5
  },
  "luminance": 0.07387
}

Semantic roles & 50–950 ramp

primary

#313CB9

secondary

#C8C27D

accent

#D546E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #313CB9

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

Preview Lab → · Contrast checker → · Palette generator →