#313AA6#313AA6

#313AA6 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.4% C 0.171 H 272.6°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#313AA6
RGB	rgb(49, 58, 166)
HSL	hsl(235, 54%, 42%)
HSV	hsv(235, 70%, 65%)
CMYK	cmyk(70.5%, 65.1%, 0%, 34.9%)
CIE-LAB	lab(30.48, 33.01, -59.18)
CIE-LCH	lch(30.48, 67.77, 299.15°)
OKLab	oklab(41.4% 0.0079 -0.1709)
OKLCH	oklch(41.4% 0.171 272.6)
XYZ	xyz(9.6603, 6.4313, 36.8013)
Luminance	0.0643 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313AA6 #A69D31

analogous

#3174A6 #313AA6 #6331A6

triadic

#313AA6 #A6313A #3AA631

tetradic

#313AA6 #A63174 #A69D31 #31A663

square

#313AA6 #A63174 #A69D31 #31A663

split-complementary

#313AA6 #A66331 #74A631

monochromatic

#151947 #232977 #313AA6 #4A54CA #7A81D8

Accessibility & contrast

On white

9.18

#313AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#313AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313AA6

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313AA6	#FFFFFF	#000000	##FFFFFF
##313AA6	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA9

Deuteranopia (green-blind)

#0042A4

Tritanopia (blue-blind)

#00566A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #313aa6;
/* rgb */ color: rgb(49, 58, 166);
/* oklch */ color: oklch(41.4% 0.171 272.6);

Tailwind

colors: {
  custom: {
    50: '#7970c1',
    500: '#313aa6',
    950: '#000000',
  },
}

SCSS

$custom: #313aa6;
$custom-light: #7970c1;
$custom-dark: #000000;

JSON

{
  "hex": "#313aa6",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 166
  },
  "hsl": {
    "h": 235.385,
    "s": 54.419,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41399,
    "c": 0.17109,
    "h": 272.6
  },
  "luminance": 0.06432
}

Semantic roles & 50–950 ramp

primary

#313AA6

secondary

#C0BA73

accent

#D24ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #313AA6

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

Preview Lab → · Contrast checker → · Palette generator →