#313EA0#313EA0

#313EA0 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.6% C 0.158 H 271.8°. Best body text is #FFFFFF at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#313EA0
RGB	rgb(49, 62, 160)
HSL	hsl(233, 53%, 41%)
HSV	hsv(233, 69%, 63%)
CMYK	cmyk(69.4%, 61.2%, 0%, 37.3%)
CIE-LAB	lab(30.96, 28.25, -54.77)
CIE-LCH	lch(30.96, 61.62, 297.28°)
OKLab	oklab(41.6% 0.0051 -0.1579)
OKLCH	oklch(41.6% 0.158 271.8)
XYZ	xyz(9.3323, 6.6354, 34.0398)
Luminance	0.0664 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313EA0 #A09331

analogous

#3175A0 #313EA0 #5B31A0

triadic

#313EA0 #A0313E #3EA031

tetradic

#313EA0 #A03175 #A09331 #31A05B

square

#313EA0 #A03175 #A09331 #31A05B

split-complementary

#313EA0 #A05B31 #75A031

monochromatic

#141A42 #232C71 #313EA0 #4756C7 #7681D5

Accessibility & contrast

On white

9.02

#313EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#313EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EA0

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EA0	#FFFFFF	#000000	##FFFFFF
##313EA0	1.00	9.02	2.33	9.02
#FFFFFF	9.02	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00449E

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #313ea0;
/* rgb */ color: rgb(49, 62, 160);
/* oklch */ color: oklch(41.6% 0.158 271.8);

Tailwind

colors: {
  custom: {
    50: '#7873bd',
    500: '#313ea0',
    950: '#000000',
  },
}

SCSS

$custom: #313ea0;
$custom-light: #7873bd;
$custom-dark: #000000;

JSON

{
  "hex": "#313ea0",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 160
  },
  "hsl": {
    "h": 232.973,
    "s": 53.11,
    "l": 40.98
  },
  "oklch": {
    "l": 0.41598,
    "c": 0.15801,
    "h": 271.8
  },
  "luminance": 0.06636
}

Semantic roles & 50–950 ramp

primary

#313EA0

secondary

#BDB470

accent

#CC4BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #313EA0

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

Preview Lab → · Contrast checker → · Palette generator →