#31308E#31308E

#31308E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.4% C 0.151 H 276.7°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#31308E
RGB	rgb(49, 48, 142)
HSL	hsl(241, 49%, 37%)
HSV	hsv(241, 66%, 56%)
CMYK	cmyk(65.5%, 66.2%, 0%, 44.3%)
CIE-LAB	lab(25.92, 30.92, -51.99)
CIE-LCH	lch(25.92, 60.49, 300.74°)
OKLab	oklab(37.41% 0.0176 -0.1499)
OKLCH	oklch(37.41% 0.151 276.7)
XYZ	xyz(7.2045, 4.7193, 26.1172)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31308E #8D8E30

analogous

#305E8E #31308E #60308E

triadic

#31308E #8E3130 #308E31

tetradic

#31308E #8E305E #8D8E30 #308E60

square

#31308E #8E305E #8D8E30 #308E60

split-complementary

#31308E #8E6030 #5E8E30

monochromatic

#111133 #212160 #31308E #413FBC #6C6BCD

Accessibility & contrast

On white

10.80

#31308E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#31308E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31308E

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31308E	#FFFFFF	#000000	##FFFFFF
##31308E	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004191

Deuteranopia (green-blind)

#00398C

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #31308e;
/* rgb */ color: rgb(49, 48, 142);
/* oklch */ color: oklch(37.4% 0.151 276.7);

Tailwind

colors: {
  custom: {
    50: '#7569b0',
    500: '#31308e',
    950: '#000000',
  },
}

SCSS

$custom: #31308e;
$custom-light: #7569b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31308e",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 142
  },
  "hsl": {
    "h": 240.638,
    "s": 49.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37414,
    "c": 0.15091,
    "h": 276.7
  },
  "luminance": 0.0472
}

Semantic roles & 50–950 ramp

primary

#31308E

secondary

#B4B465

accent

#D94FD8

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#090611

muted

#7B7A80

Preview Lab

Preview with #31308E

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

Preview Lab → · Contrast checker → · Palette generator →