#313EA1#313EA1

#313EA1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.7% C 0.159 H 271.8°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#313EA1
RGB	rgb(49, 62, 161)
HSL	hsl(233, 53%, 41%)
HSV	hsv(233, 70%, 63%)
CMYK	cmyk(69.6%, 61.5%, 0%, 36.9%)
CIE-LAB	lab(31.04, 28.61, -55.24)
CIE-LCH	lch(31.04, 62.21, 297.38°)
OKLab	oklab(41.69% 0.0051 -0.1593)
OKLCH	oklch(41.69% 0.159 271.8)
XYZ	xyz(9.4201, 6.6705, 34.5024)
Luminance	0.0667 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313EA1 #A19431

analogous

#3176A1 #313EA1 #5C31A1

triadic

#313EA1 #A1313E #3EA131

tetradic

#313EA1 #A13176 #A19431 #31A15C

square

#313EA1 #A13176 #A19431 #31A15C

split-complementary

#313EA1 #A15C31 #76A131

monochromatic

#141A43 #232C72 #313EA1 #4857C7 #7782D6

Accessibility & contrast

On white

9.00

#313EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#313EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EA1

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EA1	#FFFFFF	#000000	##FFFFFF
##313EA1	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00449F

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #313ea1;
/* rgb */ color: rgb(49, 62, 161);
/* oklch */ color: oklch(41.7% 0.159 271.8);

Tailwind

colors: {
  custom: {
    50: '#7873be',
    500: '#313ea1',
    950: '#000000',
  },
}

SCSS

$custom: #313ea1;
$custom-light: #7873be;
$custom-dark: #000000;

JSON

{
  "hex": "#313ea1",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 161
  },
  "hsl": {
    "h": 233.036,
    "s": 53.333,
    "l": 41.176
  },
  "oklch": {
    "l": 0.41685,
    "c": 0.15939,
    "h": 271.8
  },
  "luminance": 0.06671
}

Semantic roles & 50–950 ramp

primary

#313EA1

secondary

#BEB570

accent

#CC4BDD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #313EA1

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

Preview Lab → · Contrast checker → · Palette generator →