#31308D#31308D

#31308D is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.3% C 0.150 H 276.8°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#31308D
RGB	rgb(49, 48, 141)
HSL	hsl(241, 49%, 37%)
HSV	hsv(241, 66%, 55%)
CMYK	cmyk(65.2%, 66%, 0%, 44.7%)
CIE-LAB	lab(25.83, 30.56, -51.52)
CIE-LCH	lch(25.83, 59.90, 300.68°)
OKLab	oklab(37.32% 0.0177 -0.1485)
OKLCH	oklch(37.32% 0.15 276.8)
XYZ	xyz(7.1297, 4.6894, 25.7236)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31308D #8C8D30

analogous

#305E8D #31308D #60308D

triadic

#31308D #8D3130 #308D31

tetradic

#31308D #8D305E #8C8D30 #308D60

square

#31308D #8D305E #8C8D30 #308D60

split-complementary

#31308D #8D6030 #5E8D30

monochromatic

#111132 #21205F #31308D #4140BB #6C6BCD

Accessibility & contrast

On white

10.84

#31308D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#31308D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31308D

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31308D	#FFFFFF	#000000	##FFFFFF
##31308D	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004190

Deuteranopia (green-blind)

#00398B

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #31308d;
/* rgb */ color: rgb(49, 48, 141);
/* oklch */ color: oklch(37.3% 0.150 276.8);

Tailwind

colors: {
  custom: {
    50: '#7568af',
    500: '#31308d',
    950: '#000000',
  },
}

SCSS

$custom: #31308d;
$custom-light: #7568af;
$custom-dark: #000000;

JSON

{
  "hex": "#31308d",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 141
  },
  "hsl": {
    "h": 240.645,
    "s": 49.206,
    "l": 37.059
  },
  "oklch": {
    "l": 0.37322,
    "c": 0.14954,
    "h": 276.8
  },
  "luminance": 0.0469
}

Semantic roles & 50–950 ramp

primary

#31308D

secondary

#B3B465

accent

#D94FD7

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #31308D

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

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