#31439C#31439C

#31439C is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.2% C 0.146 H 270.3°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#31439C
RGB	rgb(49, 67, 156)
HSL	hsl(230, 52%, 40%)
HSV	hsv(230, 69%, 61%)
CMYK	cmyk(68.6%, 57.1%, 0%, 38.8%)
CIE-LAB	lab(31.96, 23.46, -50.73)
CIE-LCH	lch(31.96, 55.89, 294.82°)
OKLab	oklab(42.24% 0.0008 -0.146)
OKLCH	oklch(42.24% 0.146 270.3)
XYZ	xyz(9.2725, 7.0667, 32.3214)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31439C #9C8A31

analogous

#31789C #31439C #55319C

triadic

#31439C #9C3143 #439C31

tetradic

#31439C #9C3178 #9C8A31 #319C55

square

#31439C #9C3178 #9C8A31 #319C55

split-complementary

#31439C #9C5531 #789C31

monochromatic

#141B3F #222F6D #31439C #455BC5 #7484D3

Accessibility & contrast

On white

8.70

#31439C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#31439C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31439C

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31439C	#FFFFFF	#000000	##FFFFFF
##31439C	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509F

Deuteranopia (green-blind)

#00469A

Tritanopia (blue-blind)

#005969

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #31439c;
/* rgb */ color: rgb(49, 67, 156);
/* oklch */ color: oklch(42.2% 0.146 270.3);

Tailwind

colors: {
  custom: {
    50: '#7676ba',
    500: '#31439c',
    950: '#000000',
  },
}

SCSS

$custom: #31439c;
$custom-light: #7676ba;
$custom-dark: #000000;

JSON

{
  "hex": "#31439c",
  "rgb": {
    "r": 49,
    "g": 67,
    "b": 156
  },
  "hsl": {
    "h": 229.907,
    "s": 52.195,
    "l": 40.196
  },
  "oklch": {
    "l": 0.4224,
    "c": 0.14599,
    "h": 270.3
  },
  "luminance": 0.07068
}

Semantic roles & 50–950 ramp

primary

#31439C

secondary

#BBAE6D

accent

#C34CDC

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #31439C

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

Preview Lab → · Contrast checker → · Palette generator →