#5151DA#5151DA

#5151DA is a mid, highly saturated blue. Relative luminance 0.127; OKLCH L 51.9% C 0.204 H 276.6°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#5151DA
RGB	rgb(81, 81, 218)
HSL	hsl(240, 65%, 59%)
HSV	hsv(240, 63%, 85%)
CMYK	cmyk(62.8%, 62.8%, 0%, 14.5%)
CIE-LAB	lab(42.30, 40.99, -70.24)
CIE-LCH	lch(42.30, 81.33, 300.27°)
OKLab	oklab(51.94% 0.0235 -0.2024)
OKLCH	oklch(51.94% 0.204 276.6)
XYZ	xyz(18.9865, 12.6946, 67.7658)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5151DA #DADA51

analogous

#5195DA #5151DA #9551DA

triadic

#5151DA #DA5151 #51DA51

tetradic

#5151DA #DA5195 #DADA51 #51DA95

square

#5151DA #DA5195 #DADA51 #51DA95

split-complementary

#5151DA #DA9551 #95DA51

monochromatic

#1F1F92 #2A2AC4 #5151DA #8383E5 #B6B6EF

Accessibility & contrast

On white

5.93

#5151DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#5151DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5151DA

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5151DA	#FFFFFF	#000000	##FFFFFF
##5151DA	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADE

Deuteranopia (green-blind)

#005ED7

Tritanopia (blue-blind)

#00748E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #5151da;
/* rgb */ color: rgb(81, 81, 218);
/* oklch */ color: oklch(51.9% 0.204 276.6);

Tailwind

colors: {
  custom: {
    50: '#9082e6',
    500: '#5151da',
    950: '#000000',
  },
}

SCSS

$custom: #5151da;
$custom-light: #9082e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5151da",
  "rgb": {
    "r": 81,
    "g": 81,
    "b": 218
  },
  "hsl": {
    "h": 240,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.5194,
    "c": 0.20374,
    "h": 276.6
  },
  "luminance": 0.12696
}

Semantic roles & 50–950 ramp

primary

#5151DA

secondary

#DEDEA8

accent

#E840E8

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #5151DA

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

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