#313899#313899

#313899 is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.9% C 0.156 H 273.7°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#313899
RGB	rgb(49, 56, 153)
HSL	hsl(236, 51%, 40%)
HSV	hsv(236, 68%, 60%)
CMYK	cmyk(68%, 63.4%, 0%, 40%)
CIE-LAB	lab(28.85, 29.64, -53.96)
CIE-LCH	lch(28.85, 61.57, 298.78°)
OKLab	oklab(39.86% 0.0102 -0.1556)
OKLCH	oklch(39.86% 0.156 273.7)
XYZ	xyz(8.4287, 5.7805, 30.8024)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313899 #999231

analogous

#316C99 #313899 #5E3199

triadic

#313899 #993138 #389931

tetradic

#313899 #99316C #999231 #31995E

square

#313899 #99316C #999231 #31995E

split-complementary

#313899 #995E31 #6C9931

monochromatic

#13163C #22276B #313899 #444DC3 #7279D2

Accessibility & contrast

On white

9.74

#313899 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#313899 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313899

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313899	#FFFFFF	#000000	##FFFFFF
##313899	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499C

Deuteranopia (green-blind)

#003F97

Tritanopia (blue-blind)

#005163

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #313899;
/* rgb */ color: rgb(49, 56, 153);
/* oklch */ color: oklch(39.9% 0.156 273.7);

Tailwind

colors: {
  custom: {
    50: '#776eb8',
    500: '#313899',
    950: '#000000',
  },
}

SCSS

$custom: #313899;
$custom-light: #776eb8;
$custom-dark: #000000;

JSON

{
  "hex": "#313899",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 153
  },
  "hsl": {
    "h": 235.962,
    "s": 51.485,
    "l": 39.608
  },
  "oklch": {
    "l": 0.39858,
    "c": 0.15594,
    "h": 273.7
  },
  "luminance": 0.05781
}

Semantic roles & 50–950 ramp

primary

#313899

secondary

#BAB56C

accent

#D14DDB

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0711

muted

#7C7A80

Preview Lab

Preview with #313899

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

Preview Lab → · Contrast checker → · Palette generator →