#5155D8#5155D8

#5155D8 is a mid, vivid blue. Relative luminance 0.132; OKLCH L 52.5% C 0.196 H 275.9°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#5155D8
RGB	rgb(81, 85, 216)
HSL	hsl(238, 63%, 58%)
HSV	hsv(238, 63%, 85%)
CMYK	cmyk(62.5%, 60.6%, 0%, 15.3%)
CIE-LAB	lab(43.07, 37.92, -67.85)
CIE-LCH	lch(43.07, 77.72, 299.20°)
OKLab	oklab(52.45% 0.0203 -0.1953)
OKLCH	oklch(52.45% 0.196 275.9)
XYZ	xyz(19.0325, 13.2026, 66.4978)
Luminance	0.1320 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155D8 #D8D451

analogous

#5198D8 #5155D8 #9051D8

triadic

#5155D8 #D85155 #55D851

tetradic

#5155D8 #D85198 #D8D451 #51D890

square

#5155D8 #D85198 #D8D451 #51D890

split-complementary

#5155D8 #D89051 #98D851

monochromatic

#20238F #2B30C1 #5155D8 #8386E3 #B5B7EE

Accessibility & contrast

On white

5.77

#5155D8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#5155D8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155D8

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155D8	#FFFFFF	#000000	##FFFFFF
##5155D8	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CDC

Deuteranopia (green-blind)

#0060D5

Tritanopia (blue-blind)

#00758E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #5155d8;
/* rgb */ color: rgb(81, 85, 216);
/* oklch */ color: oklch(52.5% 0.196 275.9);

Tailwind

colors: {
  custom: {
    50: '#9085e5',
    500: '#5155d8',
    950: '#000000',
  },
}

SCSS

$custom: #5155d8;
$custom-light: #9085e5;
$custom-dark: #000000;

JSON

{
  "hex": "#5155d8",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 216
  },
  "hsl": {
    "h": 238.222,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.52454,
    "c": 0.19637,
    "h": 275.9
  },
  "luminance": 0.13204
}

Semantic roles & 50–950 ramp

primary

#5155D8

secondary

#DDDCA8

accent

#E241E6

background

#F9F8FE

surface

#F2EFFC

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #5155D8

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

Preview Lab → · Contrast checker → · Palette generator →