#313E89#313E89

#313E89 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.7% C 0.125 H 272.1°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#313E89
RGB	rgb(49, 62, 137)
HSL	hsl(231, 47%, 36%)
HSV	hsv(231, 64%, 54%)
CMYK	cmyk(64.2%, 54.7%, 0%, 46.3%)
CIE-LAB	lab(29.17, 19.80, -43.61)
CIE-LCH	lch(29.17, 47.90, 294.41°)
OKLab	oklab(39.7% 0.0045 -0.1251)
OKLCH	oklch(39.7% 0.125 272.1)
XYZ	xyz(7.5031, 5.9037, 24.4062)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313E89 #897C31

analogous

#316A89 #313E89 #503189

triadic

#313E89 #89313E #3E8931

tetradic

#313E89 #89316A #897C31 #318950

square

#313E89 #89316A #897C31 #318950

split-complementary

#313E89 #895031 #6A8931

monochromatic

#11152F #212A5C #313E89 #4152B6 #6B79CA

Accessibility & contrast

On white

9.63

#313E89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#313E89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313E89

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313E89	#FFFFFF	#000000	##FFFFFF
##313E89	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D498C

Deuteranopia (green-blind)

#004187

Tritanopia (blue-blind)

#00505D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #313e89;
/* rgb */ color: rgb(49, 62, 137);
/* oklch */ color: oklch(39.7% 0.125 272.1);

Tailwind

colors: {
  custom: {
    50: '#7373ac',
    500: '#313e89',
    950: '#000000',
  },
}

SCSS

$custom: #313e89;
$custom-light: #7373ac;
$custom-dark: #000000;

JSON

{
  "hex": "#313e89",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 137
  },
  "hsl": {
    "h": 231.136,
    "s": 47.312,
    "l": 36.471
  },
  "oklch": {
    "l": 0.39695,
    "c": 0.12521,
    "h": 272.1
  },
  "luminance": 0.05904
}

Semantic roles & 50–950 ramp

primary

#313E89

secondary

#B1A664

accent

#C351D7

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#090810

muted

#7B7B7F

Preview Lab

Preview with #313E89

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

Preview Lab → · Contrast checker → · Palette generator →