#313DB6#313DB6

#313DB6 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.4% C 0.189 H 271.4°. Best body text is #FFFFFF at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#313DB6
RGB	rgb(49, 61, 182)
HSL	hsl(235, 58%, 45%)
HSV	hsv(235, 73%, 71%)
CMYK	cmyk(73.1%, 66.5%, 0%, 28.6%)
CIE-LAB	lab(32.63, 36.81, -65.21)
CIE-LCH	lch(32.63, 74.88, 299.44°)
OKLab	oklab(43.41% 0.0047 -0.1885)
OKLCH	oklch(43.41% 0.189 271.4)
XYZ	xyz(11.3760, 7.3667, 45.0693)
Luminance	0.0737 (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

#313DB6 #B6AA31

analogous

#3180B6 #313DB6 #6731B6

triadic

#313DB6 #B6313D #3DB631

tetradic

#313DB6 #B63180 #B6AA31 #31B667

square

#313DB6 #B63180 #B6AA31 #31B667

split-complementary

#313DB6 #B66731 #80B631

monochromatic

#171D56 #242D86 #313DB6 #535FD1 #848CDE

Accessibility & contrast

On white

8.49

#313DB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#313DB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313DB6

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313DB6	#FFFFFF	#000000	##FFFFFF
##313DB6	1.00	8.49	2.47	8.49
#FFFFFF	8.49	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BA

Deuteranopia (green-blind)

#0047B4

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #313db6;
/* rgb */ color: rgb(49, 61, 182);
/* oklch */ color: oklch(43.4% 0.189 271.4);

Tailwind

colors: {
  custom: {
    50: '#7d73cd',
    500: '#313db6',
    950: '#000000',
  },
}

SCSS

$custom: #313db6;
$custom-light: #7d73cd;
$custom-dark: #000000;

JSON

{
  "hex": "#313db6",
  "rgb": {
    "r": 49,
    "g": 61,
    "b": 182
  },
  "hsl": {
    "h": 234.586,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43411,
    "c": 0.1886,
    "h": 271.4
  },
  "luminance": 0.07368
}

Semantic roles & 50–950 ramp

primary

#313DB6

secondary

#C7C07C

accent

#D347E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #313DB6

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

Preview Lab → · Contrast checker → · Palette generator →