#31288E#31288E

#31288E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.1% C 0.161 H 278.6°. Best body text is #FFFFFF at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#31288E
RGB	rgb(49, 40, 142)
HSL	hsl(245, 56%, 36%)
HSV	hsv(245, 72%, 56%)
CMYK	cmyk(65.5%, 71.8%, 0%, 44.3%)
CIE-LAB	lab(24.07, 35.91, -55.02)
CIE-LCH	lch(24.07, 65.70, 303.13°)
OKLab	oklab(36.08% 0.024 -0.1587)
OKLCH	oklch(36.08% 0.161 278.6)
XYZ	xyz(6.9063, 4.1230, 26.0178)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31288E #858E28

analogous

#28528E #31288E #64288E

triadic

#31288E #8E3128 #288E31

tetradic

#31288E #8E2852 #858E28 #288E64

square

#31288E #8E2852 #858E28 #288E64

split-complementary

#31288E #8E6428 #528E28

monochromatic

#100D2F #211B5E #31288E #4135BE #695FD2

Accessibility & contrast

On white

11.51

#31288E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#31288E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31288E

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31288E	#FFFFFF	#000000	##FFFFFF
##31288E	1.00	11.51	1.82	11.51
#FFFFFF	11.51	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#00358C

Tritanopia (blue-blind)

#004458

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #31288e;
/* rgb */ color: rgb(49, 40, 142);
/* oklch */ color: oklch(36.1% 0.161 278.6);

Tailwind

colors: {
  custom: {
    50: '#7663b0',
    500: '#31288e',
    950: '#000000',
  },
}

SCSS

$custom: #31288e;
$custom-light: #7663b0;
$custom-dark: #000000;

JSON

{
  "hex": "#31288e",
  "rgb": {
    "r": 49,
    "g": 40,
    "b": 142
  },
  "hsl": {
    "h": 245.294,
    "s": 56.044,
    "l": 35.686
  },
  "oklch": {
    "l": 0.36081,
    "c": 0.16056,
    "h": 278.6
  },
  "luminance": 0.04124
}

Semantic roles & 50–950 ramp

primary

#31288E

secondary

#AFB75B

accent

#DF48D2

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #31288E

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

Preview Lab → · Contrast checker → · Palette generator →