#313CAC#313CAC

#313CAC is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.177 H 272.0°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#313CAC
RGB	rgb(49, 60, 172)
HSL	hsl(235, 56%, 43%)
HSV	hsv(235, 72%, 67%)
CMYK	cmyk(71.5%, 65.1%, 0%, 32.5%)
CIE-LAB	lab(31.49, 33.88, -61.12)
CIE-LCH	lch(31.49, 69.88, 299.00°)
OKLab	oklab(42.31% 0.0061 -0.1766)
OKLCH	oklch(42.31% 0.177 272)
XYZ	xyz(10.3264, 6.8622, 39.8021)
Luminance	0.0686 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.07

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313CAC #ACA131

analogous

#3179AC #313CAC #6331AC

triadic

#313CAC #AC313C #3CAC31

tetradic

#313CAC #AC3179 #ACA131 #31AC63

square

#313CAC #AC3179 #ACA131 #31AC63

split-complementary

#313CAC #AC6331 #79AC31

monochromatic

#161B4D #232B7C #313CAC #4E59CC #7D86DA

Accessibility & contrast

On white

8.85

#313CAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#313CAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313CAC

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313CAC	#FFFFFF	#000000	##FFFFFF
##313CAC	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #313cac;
/* rgb */ color: rgb(49, 60, 172);
/* oklch */ color: oklch(42.3% 0.177 272.0);

Tailwind

colors: {
  custom: {
    50: '#7a72c6',
    500: '#313cac',
    950: '#000000',
  },
}

SCSS

$custom: #313cac;
$custom-light: #7a72c6;
$custom-dark: #000000;

JSON

{
  "hex": "#313cac",
  "rgb": {
    "r": 49,
    "g": 60,
    "b": 172
  },
  "hsl": {
    "h": 234.634,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42306,
    "c": 0.17668,
    "h": 272
  },
  "luminance": 0.06863
}

Semantic roles & 50–950 ramp

primary

#313CAC

secondary

#C3BC76

accent

#D249DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #313CAC

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

Preview Lab → · Contrast checker → · Palette generator →