#31409C#31409C

#31409C is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.6% C 0.150 H 271.3°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#31409C
RGB	rgb(49, 64, 156)
HSL	hsl(232, 52%, 40%)
HSV	hsv(232, 69%, 61%)
CMYK	cmyk(68.6%, 59%, 0%, 38.8%)
CIE-LAB	lab(31.16, 25.46, -52.03)
CIE-LCH	lch(31.16, 57.92, 296.07°)
OKLab	oklab(41.64% 0.0034 -0.1498)
OKLCH	oklch(41.64% 0.15 271.3)
XYZ	xyz(9.0987, 6.7192, 32.2635)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31409C #9C8D31

analogous

#31759C #31409C #58319C

triadic

#31409C #9C3140 #409C31

tetradic

#31409C #9C3175 #9C8D31 #319C58

square

#31409C #9C3175 #9C8D31 #319C58

split-complementary

#31409C #9C5831 #759C31

monochromatic

#141A3F #222D6D #31409C #4557C5 #7481D3

Accessibility & contrast

On white

8.96

#31409C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#31409C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31409C

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31409C	#FFFFFF	#000000	##FFFFFF
##31409C	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004E9F

Deuteranopia (green-blind)

#00459A

Tritanopia (blue-blind)

#005767

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #31409c;
/* rgb */ color: rgb(49, 64, 156);
/* oklch */ color: oklch(41.6% 0.150 271.3);

Tailwind

colors: {
  custom: {
    50: '#7774ba',
    500: '#31409c',
    950: '#000000',
  },
}

SCSS

$custom: #31409c;
$custom-light: #7774ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31409c",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 156
  },
  "hsl": {
    "h": 231.589,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.41643,
    "c": 0.14989,
    "h": 271.3
  },
  "luminance": 0.0672
}

Semantic roles & 50–950 ramp

primary

#31409C

secondary

#BBB06D

accent

#C84CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #31409C

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

Preview Lab → · Contrast checker → · Palette generator →