#5155CA#5155CA

#5155CA is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.3% C 0.178 H 276.6°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#5155CA
RGB	rgb(81, 85, 202)
HSL	hsl(238, 53%, 55%)
HSV	hsv(238, 60%, 79%)
CMYK	cmyk(59.9%, 57.9%, 0%, 20.8%)
CIE-LAB	lab(42.01, 33.29, -61.51)
CIE-LCH	lch(42.01, 69.94, 298.43°)
OKLab	oklab(51.35% 0.0206 -0.1767)
OKLCH	oklch(51.35% 0.178 276.6)
XYZ	xyz(17.2991, 12.5093, 57.3686)
Luminance	0.1251 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5155CA #CAC651

analogous

#5191CA #5155CA #8A51CA

triadic

#5155CA #CA5155 #55CA51

tetradic

#5155CA #CA5191 #CAC651 #51CA8A

square

#5155CA #CA5191 #CAC651 #51CA8A

split-complementary

#5155CA #CA8A51 #91CA51

monochromatic

#25287B #3438AA #5155CA #8083D8 #AFB1E7

Accessibility & contrast

On white

6.00

#5155CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#5155CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5155CA

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5155CA	#FFFFFF	#000000	##FFFFFF
##5155CA	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CE

Deuteranopia (green-blind)

#005EC8

Tritanopia (blue-blind)

#007187

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #5155ca;
/* rgb */ color: rgb(81, 85, 202);
/* oklch */ color: oklch(51.3% 0.178 276.6);

Tailwind

colors: {
  custom: {
    50: '#8d85db',
    500: '#5155ca',
    950: '#000000',
  },
}

SCSS

$custom: #5155ca;
$custom-light: #8d85db;
$custom-dark: #000000;

JSON

{
  "hex": "#5155ca",
  "rgb": {
    "r": 81,
    "g": 85,
    "b": 202
  },
  "hsl": {
    "h": 238.017,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.51346,
    "c": 0.1779,
    "h": 276.6
  },
  "luminance": 0.12511
}

Semantic roles & 50–950 ramp

primary

#5155CA

secondary

#D5D3A2

accent

#D84BDD

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #5155CA

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

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