#313EB2#313EB2

#313EB2 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.2% C 0.182 H 271.4°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#313EB2
RGB	rgb(49, 62, 178)
HSL	hsl(234, 57%, 45%)
HSV	hsv(234, 72%, 70%)
CMYK	cmyk(72.5%, 65.2%, 0%, 30.2%)
CIE-LAB	lab(32.51, 34.75, -63.04)
CIE-LCH	lch(32.51, 71.98, 298.87°)
OKLab	oklab(43.21% 0.0043 -0.1822)
OKLCH	oklch(43.21% 0.182 271.4)
XYZ	xyz(11.0224, 7.3114, 42.9412)
Luminance	0.0731 (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

#313EB2 #B2A531

analogous

#317FB2 #313EB2 #6431B2

triadic

#313EB2 #B2313E #3EB231

tetradic

#313EB2 #B2317F #B2A531 #31B264

square

#313EB2 #B2317F #B2A531 #31B264

split-complementary

#313EB2 #B26431 #7FB231

monochromatic

#171D52 #242D82 #313EB2 #515ECF #818ADC

Accessibility & contrast

On white

8.53

#313EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#313EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313EB2

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313EB2	#FFFFFF	#000000	##FFFFFF
##313EB2	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B6

Deuteranopia (green-blind)

#0046B0

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #313eb2;
/* rgb */ color: rgb(49, 62, 178);
/* oklch */ color: oklch(43.2% 0.182 271.4);

Tailwind

colors: {
  custom: {
    50: '#7c73ca',
    500: '#313eb2',
    950: '#000000',
  },
}

SCSS

$custom: #313eb2;
$custom-light: #7c73ca;
$custom-dark: #000000;

JSON

{
  "hex": "#313eb2",
  "rgb": {
    "r": 49,
    "g": 62,
    "b": 178
  },
  "hsl": {
    "h": 233.953,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43212,
    "c": 0.18222,
    "h": 271.4
  },
  "luminance": 0.07313
}

Semantic roles & 50–950 ramp

primary

#313EB2

secondary

#C5BE79

accent

#D148E0

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #313EB2

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

Preview Lab → · Contrast checker → · Palette generator →