#313389#313389

#313389 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.5% C 0.140 H 276.3°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#313389
RGB	rgb(49, 51, 137)
HSL	hsl(239, 47%, 36%)
HSV	hsv(239, 64%, 54%)
CMYK	cmyk(64.2%, 62.8%, 0%, 46.3%)
CIE-LAB	lab(26.23, 27.18, -48.38)
CIE-LCH	lch(26.23, 55.49, 299.33°)
OKLab	oklab(37.51% 0.0153 -0.1393)
OKLCH	oklch(37.51% 0.14 276.3)
XYZ	xyz(6.9643, 4.8262, 24.2266)
Luminance	0.0483 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313389 #898731

analogous

#315F89 #313389 #5B3189

triadic

#313389 #893133 #338931

tetradic

#313389 #89315F #898731 #31895B

square

#313389 #89315F #898731 #31895B

split-complementary

#313389 #895B31 #5F8931

monochromatic

#11112F #21225C #313389 #4144B6 #6B6DCA

Accessibility & contrast

On white

10.68

#313389 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#313389 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313389

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313389	#FFFFFF	#000000	##FFFFFF
##313389	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428C

Deuteranopia (green-blind)

#003A87

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #313389;
/* rgb */ color: rgb(49, 51, 137);
/* oklch */ color: oklch(37.5% 0.140 276.3);

Tailwind

colors: {
  custom: {
    50: '#746bac',
    500: '#313389',
    950: '#000000',
  },
}

SCSS

$custom: #313389;
$custom-light: #746bac;
$custom-dark: #000000;

JSON

{
  "hex": "#313389",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 137
  },
  "hsl": {
    "h": 238.636,
    "s": 47.312,
    "l": 36.471
  },
  "oklch": {
    "l": 0.3751,
    "c": 0.14009,
    "h": 276.3
  },
  "luminance": 0.04827
}

Semantic roles & 50–950 ramp

primary

#313389

secondary

#B1B064

accent

#D451D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #313389

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

Preview Lab → · Contrast checker → · Palette generator →