#313699#313699

#313699 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.5% C 0.158 H 274.3°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#313699
RGB	rgb(49, 54, 153)
HSL	hsl(237, 51%, 40%)
HSV	hsv(237, 68%, 60%)
CMYK	cmyk(68%, 64.7%, 0%, 40%)
CIE-LAB	lab(28.35, 30.94, -54.77)
CIE-LCH	lch(28.35, 62.91, 299.46°)
OKLab	oklab(39.49% 0.0118 -0.158)
OKLCH	oklch(39.49% 0.158 274.3)
XYZ	xyz(8.3337, 5.5905, 30.7707)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313699 #999431

analogous

#316A99 #313699 #603199

triadic

#313699 #993136 #369931

tetradic

#313699 #99316A #999431 #319960

square

#313699 #99316A #999431 #319960

split-complementary

#313699 #996031 #6A9931

monochromatic

#13153C #22266B #313699 #444AC3 #7277D2

Accessibility & contrast

On white

9.91

#313699 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#313699 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313699

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313699	#FFFFFF	#000000	##FFFFFF
##313699	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489C

Deuteranopia (green-blind)

#003E97

Tritanopia (blue-blind)

#004F62

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #313699;
/* rgb */ color: rgb(49, 54, 153);
/* oklch */ color: oklch(39.5% 0.158 274.3);

Tailwind

colors: {
  custom: {
    50: '#776db8',
    500: '#313699',
    950: '#000000',
  },
}

SCSS

$custom: #313699;
$custom-light: #776db8;
$custom-dark: #000000;

JSON

{
  "hex": "#313699",
  "rgb": {
    "r": 49,
    "g": 54,
    "b": 153
  },
  "hsl": {
    "h": 237.115,
    "s": 51.485,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39493,
    "c": 0.15845,
    "h": 274.3
  },
  "luminance": 0.05591
}

Semantic roles & 50–950 ramp

primary

#313699

secondary

#BAB66C

accent

#D44DDB

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #313699

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

Preview Lab → · Contrast checker → · Palette generator →