#31409E#31409E

#31409E is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.8% C 0.153 H 271.3°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#31409E
RGB	rgb(49, 64, 158)
HSL	hsl(232, 53%, 41%)
HSV	hsv(232, 69%, 62%)
CMYK	cmyk(69%, 59.5%, 0%, 38%)
CIE-LAB	lab(31.32, 26.19, -52.98)
CIE-LCH	lch(31.32, 59.10, 296.31°)
OKLab	oklab(41.81% 0.0034 -0.1526)
OKLCH	oklch(41.81% 0.153 271.3)
XYZ	xyz(9.2695, 6.7875, 33.1627)
Luminance	0.0679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31409E #9E8F31

analogous

#31769E #31409E #58319E

triadic

#31409E #9E3140 #409E31

tetradic

#31409E #9E3176 #9E8F31 #319E58

square

#31409E #9E3176 #9E8F31 #319E58

split-complementary

#31409E #9E5831 #769E31

monochromatic

#141A41 #232D6F #31409E #4658C6 #7582D4

Accessibility & contrast

On white

8.91

#31409E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#31409E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31409E

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31409E	#FFFFFF	#000000	##FFFFFF
##31409E	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA1

Deuteranopia (green-blind)

#00459C

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #31409e;
/* rgb */ color: rgb(49, 64, 158);
/* oklch */ color: oklch(41.8% 0.153 271.3);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#31409e",
  "rgb": {
    "r": 49,
    "g": 64,
    "b": 158
  },
  "hsl": {
    "h": 231.743,
    "s": 52.657,
    "l": 40.588
  },
  "oklch": {
    "l": 0.41811,
    "c": 0.15269,
    "h": 271.3
  },
  "luminance": 0.06788
}

Semantic roles & 50–950 ramp

primary

#31409E

secondary

#BCB26E

accent

#C84CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #31409E

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

Preview Lab → · Contrast checker → · Palette generator →