#31439A#31439A

#31439A is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.1% C 0.143 H 270.3°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#31439A
RGB	rgb(49, 67, 154)
HSL	hsl(230, 52%, 40%)
HSV	hsv(230, 68%, 60%)
CMYK	cmyk(68.2%, 56.5%, 0%, 39.6%)
CIE-LAB	lab(31.81, 22.72, -49.76)
CIE-LCH	lch(31.81, 54.70, 294.54°)
OKLab	oklab(42.08% 0.0007 -0.1431)
OKLCH	oklch(42.08% 0.143 270.3)
XYZ	xyz(9.1045, 6.9995, 31.4368)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31439A #9A8831

analogous

#31789A #31439A #53319A

triadic

#31439A #9A3143 #439A31

tetradic

#31439A #9A3178 #9A8831 #319A53

square

#31439A #9A3178 #9A8831 #319A53

split-complementary

#31439A #9A5331 #789A31

monochromatic

#131B3D #222F6C #31439A #455AC4 #7383D2

Accessibility & contrast

On white

8.75

#31439A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#31439A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31439A

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31439A	#FFFFFF	#000000	##FFFFFF
##31439A	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509D

Deuteranopia (green-blind)

#004698

Tritanopia (blue-blind)

#005868

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #31439a;
/* rgb */ color: rgb(49, 67, 154);
/* oklch */ color: oklch(42.1% 0.143 270.3);

Tailwind

colors: {
  custom: {
    50: '#7676b8',
    500: '#31439a',
    950: '#000000',
  },
}

SCSS

$custom: #31439a;
$custom-light: #7676b8;
$custom-dark: #000000;

JSON

{
  "hex": "#31439a",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 154
  },
  "hsl": {
    "h": 229.714,
    "s": 51.724,
    "l": 39.804
  },
  "oklch": {
    "l": 0.42077,
    "c": 0.14315,
    "h": 270.3
  },
  "luminance": 0.07
}

Semantic roles & 50–950 ramp

primary

#31439A

secondary

#BAAD6C

accent

#C34DDB

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #31439A

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

Preview Lab → · Contrast checker → · Palette generator →