#313689#313689

#313689 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.1% C 0.136 H 275.3°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#313689
RGB	rgb(49, 54, 137)
HSL	hsl(237, 47%, 36%)
HSV	hsv(237, 64%, 54%)
CMYK	cmyk(64.2%, 60.6%, 0%, 46.3%)
CIE-LAB	lab(27.01, 25.19, -47.11)
CIE-LCH	lch(27.01, 53.42, 298.13°)
OKLab	oklab(38.08% 0.0125 -0.1355)
OKLCH	oklch(38.08% 0.136 275.3)
XYZ	xyz(7.0997, 5.0969, 24.2717)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313689 #898431

analogous

#316289 #313689 #583189

triadic

#313689 #893136 #368931

tetradic

#313689 #893162 #898431 #318958

square

#313689 #893162 #898431 #318958

split-complementary

#313689 #895831 #628931

monochromatic

#11122F #21245C #313689 #4148B6 #6B70CA

Accessibility & contrast

On white

10.40

#313689 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#313689 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313689

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313689	#FFFFFF	#000000	##FFFFFF
##313689	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448C

Deuteranopia (green-blind)

#003C87

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313689;
/* rgb */ color: rgb(49, 54, 137);
/* oklch */ color: oklch(38.1% 0.136 275.3);

Tailwind

colors: {
  custom: {
    50: '#736dac',
    500: '#313689',
    950: '#000000',
  },
}

SCSS

$custom: #313689;
$custom-light: #736dac;
$custom-dark: #000000;

JSON

{
  "hex": "#313689",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 137
  },
  "hsl": {
    "h": 236.591,
    "s": 47.312,
    "l": 36.471
  },
  "oklch": {
    "l": 0.38083,
    "c": 0.13608,
    "h": 275.3
  },
  "luminance": 0.05097
}

Semantic roles & 50–950 ramp

primary

#313689

secondary

#B1AD64

accent

#CF51D7

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #313689

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

Preview Lab → · Contrast checker → · Palette generator →