#313A85#313A85

#313A85 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.6% C 0.125 H 273.9°. Best body text is #FFFFFF at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#313A85
RGB	rgb(49, 58, 133)
HSL	hsl(234, 46%, 36%)
HSV	hsv(234, 63%, 52%)
CMYK	cmyk(63.2%, 56.4%, 0%, 47.8%)
CIE-LAB	lab(27.77, 21.04, -43.39)
CIE-LCH	lch(27.77, 48.23, 295.87°)
OKLab	oklab(38.55% 0.0084 -0.1245)
OKLCH	oklch(38.55% 0.125 273.9)
XYZ	xyz(7.0119, 5.3720, 22.8531)
Luminance	0.0537 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313A85 #857C31

analogous

#316485 #313A85 #523185

triadic

#313A85 #85313A #3A8531

tetradic

#313A85 #853164 #857C31 #318552

square

#313A85 #853164 #857C31 #318552

split-complementary

#313A85 #855231 #648531

monochromatic

#10132C #212658 #313A85 #414EB2 #6973C8

Accessibility & contrast

On white

10.12

#313A85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.07

#313A85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313A85

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313A85	#FFFFFF	#000000	##FFFFFF
##313A85	1.00	10.12	2.07	10.12
#FFFFFF	10.12	1.00	21.00	1.00
#000000	2.07	21.00	1.00	21.00
##FFFFFF	10.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#044588

Deuteranopia (green-blind)

#003E83

Tritanopia (blue-blind)

#004C59

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #313a85;
/* rgb */ color: rgb(49, 58, 133);
/* oklch */ color: oklch(38.6% 0.125 273.9);

Tailwind

colors: {
  custom: {
    50: '#7270a9',
    500: '#313a85',
    950: '#000000',
  },
}

SCSS

$custom: #313a85;
$custom-light: #7270a9;
$custom-dark: #000000;

JSON

{
  "hex": "#313a85",
  "rgb": {
    "r": 49,
    "g": 58,
    "b": 133
  },
  "hsl": {
    "h": 233.571,
    "s": 46.154,
    "l": 35.686
  },
  "oklch": {
    "l": 0.3855,
    "c": 0.12481,
    "h": 273.9
  },
  "luminance": 0.05373
}

Semantic roles & 50–950 ramp

primary

#313A85

secondary

#AFA763

accent

#C852D6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #313A85

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

Preview Lab → · Contrast checker → · Palette generator →