#313B96#313B96

#313B96 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.148 H 273.0°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#313B96
RGB	rgb(49, 59, 150)
HSL	hsl(234, 51%, 39%)
HSV	hsv(234, 67%, 59%)
CMYK	cmyk(67.3%, 60.7%, 0%, 41.2%)
CIE-LAB	lab(29.37, 26.58, -51.29)
CIE-LCH	lch(29.37, 57.77, 297.39°)
OKLab	oklab(40.16% 0.0077 -0.1477)
OKLCH	oklch(40.16% 0.148 273)
XYZ	xyz(8.3338, 5.9822, 29.5637)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313B96 #968C31

analogous

#316E96 #313B96 #5A3196

triadic

#313B96 #96313B #3B9631

tetradic

#313B96 #96316E #968C31 #31965A

square

#313B96 #96316E #968C31 #31965A

split-complementary

#313B96 #965A31 #6E9631

monochromatic

#13173A #222968 #313B96 #434FC1 #717AD1

Accessibility & contrast

On white

9.56

#313B96 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#313B96 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313B96

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313B96	#FFFFFF	#000000	##FFFFFF
##313B96	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A99

Deuteranopia (green-blind)

#004194

Tritanopia (blue-blind)

#005162

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313b96;
/* rgb */ color: rgb(49, 59, 150);
/* oklch */ color: oklch(40.2% 0.148 273.0);

Tailwind

colors: {
  custom: {
    50: '#7671b6',
    500: '#313b96',
    950: '#000000',
  },
}

SCSS

$custom: #313b96;
$custom-light: #7671b6;
$custom-dark: #000000;

JSON

{
  "hex": "#313b96",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 150
  },
  "hsl": {
    "h": 234.059,
    "s": 50.754,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40161,
    "c": 0.14793,
    "h": 273
  },
  "luminance": 0.05983
}

Semantic roles & 50–950 ramp

primary

#313B96

secondary

#B8B16A

accent

#CC4EDA

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #313B96

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

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