#313578#313578

#313578 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.5% C 0.112 H 276.7°. Best body text is #FFFFFF at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#313578
RGB	rgb(49, 53, 120)
HSL	hsl(237, 42%, 33%)
HSV	hsv(237, 59%, 47%)
CMYK	cmyk(59.2%, 55.8%, 0%, 52.9%)
CIE-LAB	lab(25.43, 19.73, -39.01)
CIE-LCH	lch(25.43, 43.72, 296.83°)
OKLab	oklab(36.49% 0.0131 -0.1117)
OKLCH	oklch(36.49% 0.112 276.7)
XYZ	xyz(5.9288, 4.5548, 18.3324)
Luminance	0.0456 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313578 #787431

analogous

#315878 #313578 #503178

triadic

#313578 #783135 #357831

tetradic

#313578 #783158 #787431 #317850

square

#313578 #783158 #787431 #317850

split-complementary

#313578 #785031 #587831

monochromatic

#0E0F21 #1F224D #313578 #4348A3 #6469C0

Accessibility & contrast

On white

10.99

#313578 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#313578 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313578

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313578	#FFFFFF	#000000	##FFFFFF
##313578	1.00	10.99	1.91	10.99
#FFFFFF	10.99	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C3F7A

Deuteranopia (green-blind)

#003977

Tritanopia (blue-blind)

#074451

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #313578;
/* rgb */ color: rgb(49, 53, 120);
/* oklch */ color: oklch(36.5% 0.112 276.7);

Tailwind

colors: {
  custom: {
    50: '#706c9f',
    500: '#313578',
    950: '#000000',
  },
}

SCSS

$custom: #313578;
$custom-light: #706c9f;
$custom-dark: #000000;

JSON

{
  "hex": "#313578",
  "rgb": {
    "r": 49,
    "g": 53,
    "b": 120
  },
  "hsl": {
    "h": 236.62,
    "s": 42.012,
    "l": 33.137
  },
  "oklch": {
    "l": 0.36489,
    "c": 0.11246,
    "h": 276.7
  },
  "luminance": 0.04555
}

Semantic roles & 50–950 ramp

primary

#313578

secondary

#A7A35E

accent

#CB56D2

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#08060E

muted

#7B7A7E

Preview Lab

Preview with #313578

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

Preview Lab → · Contrast checker → · Palette generator →