#313BAD#313BAD

#313BAD is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.179 H 272.1°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#313BAD
RGB	rgb(49, 59, 173)
HSL	hsl(235, 56%, 44%)
HSV	hsv(235, 72%, 68%)
CMYK	cmyk(71.7%, 65.9%, 0%, 32.2%)
CIE-LAB	lab(31.34, 34.87, -61.97)
CIE-LCH	lch(31.34, 71.11, 299.37°)
OKLab	oklab(42.22% 0.0067 -0.1791)
OKLCH	oklch(42.22% 0.179 272.1)
XYZ	xyz(10.3709, 6.7970, 40.2925)
Luminance	0.0680 (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

#313BAD #ADA331

analogous

#3179AD #313BAD #6531AD

triadic

#313BAD #AD313B #3BAD31

tetradic

#313BAD #AD3179 #ADA331 #31AD65

square

#313BAD #AD3179 #ADA331 #31AD65

split-complementary

#313BAD #AD6531 #79AD31

monochromatic

#161A4E #232B7D #313BAD #4E58CD #7E85DA

Accessibility & contrast

On white

8.90

#313BAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#313BAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #313BAD

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##313BAD	#FFFFFF	#000000	##FFFFFF
##313BAD	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B1

Deuteranopia (green-blind)

#0044AB

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #313bad;
/* rgb */ color: rgb(49, 59, 173);
/* oklch */ color: oklch(42.2% 0.179 272.1);

Tailwind

colors: {
  custom: {
    50: '#7b71c6',
    500: '#313bad',
    950: '#000000',
  },
}

SCSS

$custom: #313bad;
$custom-light: #7b71c6;
$custom-dark: #000000;

JSON

{
  "hex": "#313bad",
  "rgb": {
    "r": 49,
    "g": 59,
    "b": 173
  },
  "hsl": {
    "h": 235.161,
    "s": 55.856,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42223,
    "c": 0.17918,
    "h": 272.1
  },
  "luminance": 0.06798
}

Semantic roles & 50–950 ramp

primary

#313BAD

secondary

#C3BD77

accent

#D349DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #313BAD

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

Preview Lab → · Contrast checker → · Palette generator →