#5155FF#5155FF

#5155FF is a mid, highly saturated blue. Relative luminance 0.155; OKLCH L 55.8% C 0.245 H 274.1°. Best body text is #FFFFFF at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#5155FF
RGB	rgb(81, 85, 255)
HSL	hsl(239, 100%, 66%)
HSV	hsv(239, 68%, 100%)
CMYK	cmyk(68.2%, 66.7%, 0%, 0%)
CIE-LAB	lab(46.26, 50.64, -84.61)
CIE-LCH	lch(46.26, 98.60, 300.90°)
OKLab	oklab(55.77% 0.0173 -0.2445)
OKLCH	oklch(55.77% 0.245 274.1)
XYZ	xyz(24.6858, 15.4640, 96.2723)
Luminance	0.1547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155FF #FFFB51

analogous

#51ACFF #5155FF #A451FF

triadic

#5155FF #FF5155 #55FF51

tetradic

#5155FF #FF51AC #FFFB51 #51FFA4

square

#5155FF #FF51AC #FFFB51 #51FFA4

split-complementary

#5155FF #FFA451 #ACFF51

monochromatic

#0005D6 #1419FF #5155FF #8E91FF #CBCDFF

Accessibility & contrast

On white

5.13

#5155FF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#5155FF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155FF

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155FF	#FFFFFF	#000000	##FFFFFF
##5155FF	1.00	5.13	4.09	5.13
#FFFFFF	5.13	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076FF

Deuteranopia (green-blind)

#0066FC

Tritanopia (blue-blind)

#0083A3

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #5155ff;
/* rgb */ color: rgb(81, 85, 255);
/* oklch */ color: oklch(55.8% 0.245 274.1);

Tailwind

colors: {
  custom: {
    50: '#9786ff',
    500: '#5155ff',
    950: '#000000',
  },
}

SCSS

$custom: #5155ff;
$custom-light: #9786ff;
$custom-dark: #000000;

JSON

{
  "hex": "#5155ff",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 255
  },
  "hsl": {
    "h": 238.621,
    "s": 100,
    "l": 65.882
  },
  "oklch": {
    "l": 0.55773,
    "c": 0.24508,
    "h": 274.1
  },
  "luminance": 0.15466
}

Semantic roles & 50–950 ramp

primary

#5155FF

secondary

#F3F1B9

accent

#E000E6

background

#FAF8FF

surface

#F4EFFF

border

#CECAD7

text

#0F0B18

muted

#7F7C86

Preview Lab

Preview with #5155FF

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

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