#313F94#313F94

#313F94 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.140 H 271.7°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#313F94
RGB	rgb(49, 63, 148)
HSL	hsl(232, 50%, 39%)
HSV	hsv(232, 67%, 58%)
CMYK	cmyk(66.9%, 57.4%, 0%, 42%)
CIE-LAB	lab(30.27, 23.18, -48.60)
CIE-LCH	lch(30.27, 53.85, 295.50°)
OKLab	oklab(40.78% 0.0041 -0.1398)
OKLCH	oklch(40.78% 0.14 271.7)
XYZ	xyz(8.3876, 6.3453, 28.7940)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F94 #948631

analogous

#317094 #313F94 #543194

triadic

#313F94 #94313F #3F9431

tetradic

#313F94 #943170 #948631 #319454

square

#313F94 #943170 #948631 #319454

split-complementary

#313F94 #945431 #709431

monochromatic

#131838 #222B66 #313F94 #4254C0 #707DD0

Accessibility & contrast

On white

9.25

#313F94 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#313F94 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F94

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F94	#FFFFFF	#000000	##FFFFFF
##313F94	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C97

Deuteranopia (green-blind)

#004392

Tritanopia (blue-blind)

#005363

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #313f94;
/* rgb */ color: rgb(49, 63, 148);
/* oklch */ color: oklch(40.8% 0.140 271.7);

Tailwind

colors: {
  custom: {
    50: '#7573b4',
    500: '#313f94',
    950: '#000000',
  },
}

SCSS

$custom: #313f94;
$custom-light: #7573b4;
$custom-dark: #000000;

JSON

{
  "hex": "#313f94",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 148
  },
  "hsl": {
    "h": 231.515,
    "s": 50.254,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40781,
    "c": 0.13985,
    "h": 271.7
  },
  "luminance": 0.06346
}

Semantic roles & 50–950 ramp

primary

#313F94

secondary

#B7AC69

accent

#C64EDA

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313F94

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

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