#31439D#31439D

#31439D is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.3% C 0.147 H 270.3°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#31439D
RGB	rgb(49, 67, 157)
HSL	hsl(230, 52%, 40%)
HSV	hsv(230, 69%, 62%)
CMYK	cmyk(68.8%, 57.3%, 0%, 38.4%)
CIE-LAB	lab(32.04, 23.83, -51.21)
CIE-LCH	lch(32.04, 56.48, 294.95°)
OKLab	oklab(42.32% 0.0008 -0.1474)
OKLCH	oklch(42.32% 0.147 270.3)
XYZ	xyz(9.3575, 7.1007, 32.7692)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31439D #9D8B31

analogous

#31799D #31439D #55319D

triadic

#31439D #9D3143 #439D31

tetradic

#31439D #9D3179 #9D8B31 #319D55

square

#31439D #9D3179 #9D8B31 #319D55

split-complementary

#31439D #9D5531 #799D31

monochromatic

#141B40 #222F6E #31439D #465BC5 #7584D4

Accessibility & contrast

On white

8.68

#31439D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#31439D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31439D

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31439D	#FFFFFF	#000000	##FFFFFF
##31439D	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A0

Deuteranopia (green-blind)

#00479B

Tritanopia (blue-blind)

#005969

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #31439d;
/* rgb */ color: rgb(49, 67, 157);
/* oklch */ color: oklch(42.3% 0.147 270.3);

Tailwind

colors: {
  custom: {
    50: '#7776bb',
    500: '#31439d',
    950: '#000000',
  },
}

SCSS

$custom: #31439d;
$custom-light: #7776bb;
$custom-dark: #000000;

JSON

{
  "hex": "#31439d",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 157
  },
  "hsl": {
    "h": 230,
    "s": 52.427,
    "l": 40.392
  },
  "oklch": {
    "l": 0.42321,
    "c": 0.14741,
    "h": 270.3
  },
  "luminance": 0.07102
}

Semantic roles & 50–950 ramp

primary

#31439D

secondary

#BCAF6E

accent

#C44CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #31439D

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

Preview Lab → · Contrast checker → · Palette generator →