#313099#313099

#313099 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.5% C 0.166 H 275.7°. Best body text is #FFFFFF at 10.43:1 contrast (WCAG AA passes).

Color values

HEX	#313099
RGB	rgb(49, 48, 153)
HSL	hsl(241, 52%, 39%)
HSV	hsv(241, 69%, 60%)
CMYK	cmyk(68%, 68.6%, 0%, 40%)
CIE-LAB	lab(26.92, 34.76, -57.12)
CIE-LCH	lch(26.92, 66.87, 301.33°)
OKLab	oklab(38.45% 0.0164 -0.1649)
OKLCH	oklch(38.45% 0.166 275.7)
XYZ	xyz(8.0715, 5.0661, 30.6833)
Luminance	0.0507 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313099 #989930

analogous

#306499 #313099 #653099

triadic

#313099 #993130 #309931

tetradic

#313099 #993064 #989930 #309965

square

#313099 #993064 #989930 #309965

split-complementary

#313099 #996530 #649930

monochromatic

#13133C #22216A #313099 #4442C4 #7271D2

Accessibility & contrast

On white

10.43

#313099 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#313099 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313099

10.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313099	#FFFFFF	#000000	##FFFFFF
##313099	1.00	10.43	2.01	10.43
#FFFFFF	10.43	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00449C

Deuteranopia (green-blind)

#003B97

Tritanopia (blue-blind)

#004C60

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #313099;
/* rgb */ color: rgb(49, 48, 153);
/* oklch */ color: oklch(38.5% 0.166 275.7);

Tailwind

colors: {
  custom: {
    50: '#7769b8',
    500: '#313099',
    950: '#000000',
  },
}

SCSS

$custom: #313099;
$custom-light: #7769b8;
$custom-dark: #000000;

JSON

{
  "hex": "#313099",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 153
  },
  "hsl": {
    "h": 240.571,
    "s": 52.239,
    "l": 39.412
  },
  "oklch": {
    "l": 0.38451,
    "c": 0.16572,
    "h": 275.7
  },
  "luminance": 0.05067
}

Semantic roles & 50–950 ramp

primary

#313099

secondary

#B9BA6B

accent

#DC4CDA

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #313099

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

Preview Lab → · Contrast checker → · Palette generator →