#31409A#31409A

#31409A is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.5% C 0.147 H 271.3°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#31409A
RGB	rgb(49, 64, 154)
HSL	hsl(231, 52%, 40%)
HSV	hsv(231, 68%, 60%)
CMYK	cmyk(68.2%, 58.4%, 0%, 39.6%)
CIE-LAB	lab(31.00, 24.72, -51.07)
CIE-LCH	lch(31.00, 56.74, 295.83°)
OKLab	oklab(41.48% 0.0034 -0.147)
OKLCH	oklch(41.48% 0.147 271.3)
XYZ	xyz(8.9308, 6.6520, 31.3789)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31409A #9A8B31

analogous

#31749A #31409A #57319A

triadic

#31409A #9A3140 #409A31

tetradic

#31409A #9A3174 #9A8B31 #319A57

square

#31409A #9A3174 #9A8B31 #319A57

split-complementary

#31409A #9A5731 #749A31

monochromatic

#13193D #222D6C #31409A #4557C4 #7381D2

Accessibility & contrast

On white

9.01

#31409A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#31409A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31409A

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31409A	#FFFFFF	#000000	##FFFFFF
##31409A	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9D

Deuteranopia (green-blind)

#004498

Tritanopia (blue-blind)

#005666

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #31409a;
/* rgb */ color: rgb(49, 64, 154);
/* oklch */ color: oklch(41.5% 0.147 271.3);

Tailwind

colors: {
  custom: {
    50: '#7674b8',
    500: '#31409a',
    950: '#000000',
  },
}

SCSS

$custom: #31409a;
$custom-light: #7674b8;
$custom-dark: #000000;

JSON

{
  "hex": "#31409a",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 154
  },
  "hsl": {
    "h": 231.429,
    "s": 51.724,
    "l": 39.804
  },
  "oklch": {
    "l": 0.41476,
    "c": 0.14707,
    "h": 271.3
  },
  "luminance": 0.06653
}

Semantic roles & 50–950 ramp

primary

#31409A

secondary

#BAAF6C

accent

#C74DDB

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #31409A

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

Preview Lab → · Contrast checker → · Palette generator →