#313787#313787

#313787 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.1% C 0.132 H 275.0°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#313787
RGB	rgb(49, 55, 135)
HSL	hsl(236, 47%, 36%)
HSV	hsv(236, 64%, 53%)
CMYK	cmyk(63.7%, 59.3%, 0%, 47.1%)
CIE-LAB	lab(27.11, 23.80, -45.70)
CIE-LCH	lch(27.11, 51.53, 297.51°)
OKLab	oklab(38.11% 0.0115 -0.1313)
OKLCH	oklch(38.11% 0.132 275)
XYZ	xyz(7.0046, 5.1340, 23.5388)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313787 #878131

analogous

#316287 #313787 #563187

triadic

#313787 #873137 #378731

tetradic

#313787 #873162 #878131 #318756

square

#313787 #873162 #878131 #318756

split-complementary

#313787 #875631 #628731

monochromatic

#10122D #21255A #313787 #4149B4 #6A70C9

Accessibility & contrast

On white

10.36

#313787 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#313787 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313787

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313787	#FFFFFF	#000000	##FFFFFF
##313787	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448A

Deuteranopia (green-blind)

#003C85

Tritanopia (blue-blind)

#004A59

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313787;
/* rgb */ color: rgb(49, 55, 135);
/* oklch */ color: oklch(38.1% 0.132 275.0);

Tailwind

colors: {
  custom: {
    50: '#736dab',
    500: '#313787',
    950: '#000000',
  },
}

SCSS

$custom: #313787;
$custom-light: #736dab;
$custom-dark: #000000;

JSON

{
  "hex": "#313787",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 135
  },
  "hsl": {
    "h": 235.814,
    "s": 46.739,
    "l": 36.078
  },
  "oklch": {
    "l": 0.3811,
    "c": 0.13185,
    "h": 275
  },
  "luminance": 0.05135
}

Semantic roles & 50–950 ramp

primary

#313787

secondary

#B0AB64

accent

#CD51D6

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #313787

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

Preview Lab → · Contrast checker → · Palette generator →