#313F96#313F96

#313F96 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.143 H 271.7°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#313F96
RGB	rgb(49, 63, 150)
HSL	hsl(232, 51%, 39%)
HSV	hsv(232, 67%, 59%)
CMYK	cmyk(67.3%, 58%, 0%, 41.2%)
CIE-LAB	lab(30.42, 23.91, -49.57)
CIE-LCH	lch(30.42, 55.04, 295.75°)
OKLab	oklab(40.95% 0.0042 -0.1426)
OKLCH	oklch(40.95% 0.143 271.7)
XYZ	xyz(8.5473, 6.4092, 29.6349)
Luminance	0.0641 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313F96 #968831

analogous

#317296 #313F96 #563196

triadic

#313F96 #96313F #3F9631

tetradic

#313F96 #963172 #968831 #319656

square

#313F96 #963172 #968831 #319656

split-complementary

#313F96 #965631 #729631

monochromatic

#13183A #222C68 #313F96 #4354C1 #717ED1

Accessibility & contrast

On white

9.20

#313F96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#313F96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313F96

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313F96	#FFFFFF	#000000	##FFFFFF
##313F96	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C99

Deuteranopia (green-blind)

#004394

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #313f96;
/* rgb */ color: rgb(49, 63, 150);
/* oklch */ color: oklch(40.9% 0.143 271.7);

Tailwind

colors: {
  custom: {
    50: '#7573b6',
    500: '#313f96',
    950: '#000000',
  },
}

SCSS

$custom: #313f96;
$custom-light: #7573b6;
$custom-dark: #000000;

JSON

{
  "hex": "#313f96",
  "rgb": {
    "r": 49,
    "g": 63,
    "b": 150
  },
  "hsl": {
    "h": 231.683,
    "s": 50.754,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40945,
    "c": 0.14271,
    "h": 271.7
  },
  "luminance": 0.0641
}

Semantic roles & 50–950 ramp

primary

#313F96

secondary

#B8AE6A

accent

#C74EDA

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #313F96

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

Preview Lab → · Contrast checker → · Palette generator →