#31409D#31409D

#31409D is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.7% C 0.151 H 271.3°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#31409D
RGB	rgb(49, 64, 157)
HSL	hsl(232, 52%, 40%)
HSV	hsv(232, 69%, 62%)
CMYK	cmyk(68.8%, 59.2%, 0%, 38.4%)
CIE-LAB	lab(31.24, 25.82, -52.50)
CIE-LCH	lch(31.24, 58.51, 296.19°)
OKLab	oklab(41.73% 0.0034 -0.1512)
OKLCH	oklch(41.73% 0.151 271.3)
XYZ	xyz(9.1838, 6.7532, 32.7113)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31409D #9D8E31

analogous

#31769D #31409D #58319D

triadic

#31409D #9D3140 #409D31

tetradic

#31409D #9D3176 #9D8E31 #319D58

square

#31409D #9D3176 #9D8E31 #319D58

split-complementary

#31409D #9D5831 #769D31

monochromatic

#141A40 #222D6E #31409D #4658C5 #7582D4

Accessibility & contrast

On white

8.93

#31409D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#31409D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31409D

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31409D	#FFFFFF	#000000	##FFFFFF
##31409D	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA0

Deuteranopia (green-blind)

#00459B

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #31409d;
/* rgb */ color: rgb(49, 64, 157);
/* oklch */ color: oklch(41.7% 0.151 271.3);

Tailwind

colors: {
  custom: {
    50: '#7774bb',
    500: '#31409d',
    950: '#000000',
  },
}

SCSS

$custom: #31409d;
$custom-light: #7774bb;
$custom-dark: #000000;

JSON

{
  "hex": "#31409d",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 157
  },
  "hsl": {
    "h": 231.667,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41727,
    "c": 0.15129,
    "h": 271.3
  },
  "luminance": 0.06754
}

Semantic roles & 50–950 ramp

primary

#31409D

secondary

#BCB16E

accent

#C84CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #31409D

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

Preview Lab → · Contrast checker → · Palette generator →