#5155C8#5155C8

#5155C8 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.2% C 0.175 H 276.8°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#5155C8
RGB	rgb(81, 85, 200)
HSL	hsl(238, 52%, 55%)
HSV	hsv(238, 60%, 78%)
CMYK	cmyk(59.5%, 57.5%, 0%, 21.6%)
CIE-LAB	lab(41.87, 32.63, -60.59)
CIE-LCH	lch(41.87, 68.82, 298.31°)
OKLab	oklab(51.19% 0.0206 -0.174)
OKLCH	oklch(51.19% 0.175 276.8)
XYZ	xyz(17.0638, 12.4152, 56.1296)
Luminance	0.1242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155C8 #C8C451

analogous

#5191C8 #5155C8 #8851C8

triadic

#5155C8 #C85155 #55C851

tetradic

#5155C8 #C85191 #C8C451 #51C888

square

#5155C8 #C85191 #C8C451 #51C888

split-complementary

#5155C8 #C88851 #91C851

monochromatic

#262979 #3539A7 #5155C8 #8082D7 #AEB0E5

Accessibility & contrast

On white

6.03

#5155C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#5155C8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155C8

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155C8	#FFFFFF	#000000	##FFFFFF
##5155C8	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CC

Deuteranopia (green-blind)

#005EC6

Tritanopia (blue-blind)

#007086

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #5155c8;
/* rgb */ color: rgb(81, 85, 200);
/* oklch */ color: oklch(51.2% 0.175 276.8);

Tailwind

colors: {
  custom: {
    50: '#8d85d9',
    500: '#5155c8',
    950: '#000000',
  },
}

SCSS

$custom: #5155c8;
$custom-light: #8d85d9;
$custom-dark: #000000;

JSON

{
  "hex": "#5155c8",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 200
  },
  "hsl": {
    "h": 237.983,
    "s": 51.965,
    "l": 55.098
  },
  "oklch": {
    "l": 0.51192,
    "c": 0.17521,
    "h": 276.8
  },
  "luminance": 0.12416
}

Semantic roles & 50–950 ramp

primary

#5155C8

secondary

#D3D2A1

accent

#D74CDB

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5155C8

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

Preview Lab → · Contrast checker → · Palette generator →