#31439F#31439F

#31439F is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.5% C 0.150 H 270.3°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#31439F
RGB	rgb(49, 67, 159)
HSL	hsl(230, 53%, 41%)
HSV	hsv(230, 69%, 62%)
CMYK	cmyk(69.2%, 57.9%, 0%, 37.6%)
CIE-LAB	lab(32.19, 24.57, -52.17)
CIE-LCH	lch(32.19, 57.66, 295.22°)
OKLab	oklab(42.49% 0.0009 -0.1502)
OKLCH	oklch(42.49% 0.15 270.3)
XYZ	xyz(9.5297, 7.1696, 33.6758)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31439F #9F8D31

analogous

#317A9F #31439F #56319F

triadic

#31439F #9F3143 #439F31

tetradic

#31439F #9F317A #9F8D31 #319F56

square

#31439F #9F317A #9F8D31 #319F56

split-complementary

#31439F #9F5631 #7A9F31

monochromatic

#141C41 #232F70 #31439F #475CC6 #7685D5

Accessibility & contrast

On white

8.63

#31439F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#31439F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31439F

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31439F	#FFFFFF	#000000	##FFFFFF
##31439F	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051A2

Deuteranopia (green-blind)

#00479D

Tritanopia (blue-blind)

#00596A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #31439f;
/* rgb */ color: rgb(49, 67, 159);
/* oklch */ color: oklch(42.5% 0.150 270.3);

Tailwind

colors: {
  custom: {
    50: '#7776bc',
    500: '#31439f',
    950: '#000000',
  },
}

SCSS

$custom: #31439f;
$custom-light: #7776bc;
$custom-dark: #000000;

JSON

{
  "hex": "#31439f",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 159
  },
  "hsl": {
    "h": 230.182,
    "s": 52.885,
    "l": 40.784
  },
  "oklch": {
    "l": 0.42486,
    "c": 0.15022,
    "h": 270.3
  },
  "luminance": 0.0717
}

Semantic roles & 50–950 ramp

primary

#31439F

secondary

#BDB06F

accent

#C54CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #31439F

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

Preview Lab → · Contrast checker → · Palette generator →