#313C94#313C94

#313C94 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.144 H 272.7°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#313C94
RGB	rgb(49, 60, 148)
HSL	hsl(233, 50%, 39%)
HSV	hsv(233, 67%, 58%)
CMYK	cmyk(66.9%, 59.5%, 0%, 42%)
CIE-LAB	lab(29.47, 25.18, -49.90)
CIE-LCH	lch(29.47, 55.90, 296.78°)
OKLab	oklab(40.18% 0.0069 -0.1436)
OKLCH	oklch(40.18% 0.144 272.7)
XYZ	xyz(8.2260, 6.0221, 28.7401)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313C94 #948931

analogous

#316D94 #313C94 #573194

triadic

#313C94 #94313C #3C9431

tetradic

#313C94 #94316D #948931 #319457

square

#313C94 #94316D #948931 #319457

split-complementary

#313C94 #945731 #6D9431

monochromatic

#131738 #222966 #313C94 #4250C0 #707AD0

Accessibility & contrast

On white

9.53

#313C94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#313C94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313C94

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313C94	#FFFFFF	#000000	##FFFFFF
##313C94	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A97

Deuteranopia (green-blind)

#004192

Tritanopia (blue-blind)

#005262

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313c94;
/* rgb */ color: rgb(49, 60, 148);
/* oklch */ color: oklch(40.2% 0.144 272.7);

Tailwind

colors: {
  custom: {
    50: '#7571b4',
    500: '#313c94',
    950: '#000000',
  },
}

SCSS

$custom: #313c94;
$custom-light: #7571b4;
$custom-dark: #000000;

JSON

{
  "hex": "#313c94",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 148
  },
  "hsl": {
    "h": 233.333,
    "s": 50.254,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40185,
    "c": 0.1438,
    "h": 272.7
  },
  "luminance": 0.06023
}

Semantic roles & 50–950 ramp

primary

#313C94

secondary

#B7AF69

accent

#CA4EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #313C94

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

Preview Lab → · Contrast checker → · Palette generator →