#313DC4#313DC4

#313DC4 is a dark, highly saturated blue. Relative luminance 0.080; OKLCH L 44.8% C 0.206 H 270.9°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#313DC4
RGB	rgb(49, 61, 196)
HSL	hsl(235, 60%, 48%)
HSV	hsv(235, 75%, 77%)
CMYK	cmyk(75%, 68.9%, 0%, 23.1%)
CIE-LAB	lab(33.93, 41.71, -71.31)
CIE-LCH	lch(33.93, 82.62, 300.32°)
OKLab	oklab(44.75% 0.0033 -0.2064)
OKLCH	oklch(44.75% 0.206 270.9)
XYZ	xyz(12.8958, 7.9746, 53.0735)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#313DC4 #C4B831

analogous

#3186C4 #313DC4 #6E31C4

triadic

#313DC4 #C4313D #3DC431

tetradic

#313DC4 #C43186 #C4B831 #31C46E

square

#313DC4 #C43186 #C4B831 #31C46E

split-complementary

#313DC4 #C46E31 #86C431

monochromatic

#191F62 #252E93 #313DC4 #5C66D6 #8D94E2

Accessibility & contrast

On white

8.09

#313DC4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#313DC4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313DC4

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313DC4	#FFFFFF	#000000	##FFFFFF
##313DC4	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C8

Deuteranopia (green-blind)

#0049C2

Tritanopia (blue-blind)

#00627C

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #313dc4;
/* rgb */ color: rgb(49, 61, 196);
/* oklch */ color: oklch(44.8% 0.206 270.9);

Tailwind

colors: {
  custom: {
    50: '#8073d7',
    500: '#313dc4',
    950: '#000000',
  },
}

SCSS

$custom: #313dc4;
$custom-light: #8073d7;
$custom-dark: #000000;

JSON

{
  "hex": "#313dc4",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 196
  },
  "hsl": {
    "h": 235.102,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44752,
    "c": 0.2064,
    "h": 270.9
  },
  "luminance": 0.07976
}

Semantic roles & 50–950 ramp

primary

#313DC4

secondary

#CDC784

accent

#D645E3

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #313DC4

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

Preview Lab → · Contrast checker → · Palette generator →