#313F95#313F95

#313F95 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.141 H 271.7°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#313F95
RGB	rgb(49, 63, 149)
HSL	hsl(232, 51%, 39%)
HSV	hsv(232, 67%, 58%)
CMYK	cmyk(67.1%, 57.7%, 0%, 41.6%)
CIE-LAB	lab(30.34, 23.55, -49.09)
CIE-LCH	lch(30.34, 54.44, 295.63°)
OKLab	oklab(40.86% 0.0041 -0.1412)
OKLCH	oklch(40.86% 0.141 271.7)
XYZ	xyz(8.4671, 6.3771, 29.2126)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F95 #958731

analogous

#317195 #313F95 #553195

triadic

#313F95 #95313F #3F9531

tetradic

#313F95 #953171 #958731 #319555

square

#313F95 #953171 #958731 #319555

split-complementary

#313F95 #955531 #719531

monochromatic

#131839 #222C67 #313F95 #4254C1 #707ED0

Accessibility & contrast

On white

9.23

#313F95 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#313F95 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F95

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F95	#FFFFFF	#000000	##FFFFFF
##313F95	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C98

Deuteranopia (green-blind)

#004393

Tritanopia (blue-blind)

#005463

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #313f95;
/* rgb */ color: rgb(49, 63, 149);
/* oklch */ color: oklch(40.9% 0.141 271.7);

Tailwind

colors: {
  custom: {
    50: '#7573b5',
    500: '#313f95',
    950: '#000000',
  },
}

SCSS

$custom: #313f95;
$custom-light: #7573b5;
$custom-dark: #000000;

JSON

{
  "hex": "#313f95",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 149
  },
  "hsl": {
    "h": 231.6,
    "s": 50.505,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40863,
    "c": 0.14128,
    "h": 271.7
  },
  "luminance": 0.06378
}

Semantic roles & 50–950 ramp

primary

#313F95

secondary

#B8AD6A

accent

#C64EDA

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313F95

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

Preview Lab → · Contrast checker → · Palette generator →