#31289E#31289E

#31289E is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.7% C 0.181 H 276.6°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#31289E
RGB	rgb(49, 40, 158)
HSL	hsl(245, 60%, 39%)
HSV	hsv(245, 75%, 62%)
CMYK	cmyk(69%, 74.7%, 0%, 38%)
CIE-LAB	lab(25.68, 41.24, -62.22)
CIE-LCH	lch(25.68, 74.64, 303.54°)
OKLab	oklab(37.71% 0.0209 -0.1798)
OKLCH	oklch(37.71% 0.181 276.6)
XYZ	xyz(8.1950, 4.6384, 32.8046)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31289E #959E28

analogous

#285A9E #31289E #6C289E

triadic

#31289E #9E3128 #289E31

tetradic

#31289E #9E285A #959E28 #289E6C

square

#31289E #9E285A #959E28 #289E6C

split-complementary

#31289E #9E6C28 #5A9E28

monochromatic

#130F3C #221C6D #31289E #4237CC #7068D9

Accessibility & contrast

On white

10.89

#31289E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#31289E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31289E

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31289E	#FFFFFF	#000000	##FFFFFF
##31289E	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A1

Deuteranopia (green-blind)

#00389C

Tritanopia (blue-blind)

#004A61

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #31289e;
/* rgb */ color: rgb(49, 40, 158);
/* oklch */ color: oklch(37.7% 0.181 276.6);

Tailwind

colors: {
  custom: {
    50: '#7964bc',
    500: '#31289e',
    950: '#000000',
  },
}

SCSS

$custom: #31289e;
$custom-light: #7964bc;
$custom-dark: #000000;

JSON

{
  "hex": "#31289e",
  "rgb": {
    "r": 49,
    "g": 40,
    "b": 158
  },
  "hsl": {
    "h": 244.576,
    "s": 59.596,
    "l": 38.824
  },
  "oklch": {
    "l": 0.37709,
    "c": 0.18099,
    "h": 276.6
  },
  "luminance": 0.04639
}

Semantic roles & 50–950 ramp

primary

#31289E

secondary

#B8BF63

accent

#E345D7

background

#F8F6FB

surface

#EFEBF7

border

#CAC6D0

text

#0A0512

muted

#7C7A81

Preview Lab

Preview with #31289E

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

Preview Lab → · Contrast checker → · Palette generator →