#51439B#51439B

#51439B is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.5% C 0.138 H 286.7°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#51439B
RGB	rgb(81, 67, 155)
HSL	hsl(250, 40%, 44%)
HSV	hsv(250, 57%, 61%)
CMYK	cmyk(47.7%, 56.8%, 0%, 39.2%)
CIE-LAB	lab(34.25, 29.37, -46.30)
CIE-LCH	lch(34.25, 54.83, 302.39°)
OKLab	oklab(44.53% 0.0396 -0.1321)
OKLCH	oklch(44.53% 0.138 286.7)
XYZ	xyz(11.3152, 8.1297, 31.9770)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.84

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51439B #8D9B43

analogous

#43619B #51439B #7D439B

triadic

#51439B #9B5143 #439B51

tetradic

#51439B #9B4361 #8D9B43 #439B7D

square

#51439B #9B4361 #8D9B43 #439B7D

split-complementary

#51439B #9B7D43 #619B43

monochromatic

#241E46 #3B3170 #51439B #6F61BB #968BCD

Accessibility & contrast

On white

8.00

#51439B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#51439B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #51439B

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51439B	#FFFFFF	#000000	##FFFFFF
##51439B	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E539E

Deuteranopia (green-blind)

#0C4E99

Tritanopia (blue-blind)

#395668

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #51439b;
/* rgb */ color: rgb(81, 67, 155);
/* oklch */ color: oklch(44.5% 0.138 286.7);

Tailwind

colors: {
  custom: {
    50: '#8777b9',
    500: '#51439b',
    950: '#000000',
  },
}

SCSS

$custom: #51439b;
$custom-light: #8777b9;
$custom-dark: #000000;

JSON

{
  "hex": "#51439b",
  "rgb": {
    "r": 81,
    "g": 67,
    "b": 155
  },
  "hsl": {
    "h": 249.545,
    "s": 39.64,
    "l": 43.529
  },
  "oklch": {
    "l": 0.44528,
    "c": 0.13787,
    "h": 286.7
  },
  "luminance": 0.0813
}

Semantic roles & 50–950 ramp

primary

#51439B

secondary

#AFB882

accent

#D058BD

background

#F8F7FB

surface

#F0EDF6

border

#CBC8D0

text

#0C0911

muted

#7D7B80

Preview Lab

Preview with #51439B

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

Preview Lab → · Contrast checker → · Palette generator →