#5153CF#5153CF

#5153CF is a mid, vivid blue. Relative luminance 0.124; OKLCH L 51.4% C 0.187 H 276.9°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#5153CF
RGB	rgb(81, 83, 207)
HSL	hsl(239, 57%, 56%)
HSV	hsv(239, 61%, 81%)
CMYK	cmyk(60.9%, 59.9%, 0%, 18.8%)
CIE-LAB	lab(41.91, 36.18, -64.57)
CIE-LCH	lch(41.91, 74.01, 299.26°)
OKLab	oklab(51.38% 0.0224 -0.1857)
OKLCH	oklch(51.38% 0.187 276.9)
XYZ	xyz(17.7454, 12.4395, 60.4853)
Luminance	0.1244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5153CF #CFCD51

analogous

#5192CF #5153CF #8E51CF

triadic

#5153CF #CF5153 #53CF51

tetradic

#5153CF #CF5192 #CFCD51 #51CF8E

square

#5153CF #CF5192 #CFCD51 #51CF8E

split-complementary

#5153CF #CF8E51 #92CF51

monochromatic

#242582 #3133B2 #5153CF #8182DC #B1B2E9

Accessibility & contrast

On white

6.02

#5153CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#5153CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5153CF

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5153CF	#FFFFFF	#000000	##FFFFFF
##5153CF	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D3

Deuteranopia (green-blind)

#005ECD

Tritanopia (blue-blind)

#007189

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #5153cf;
/* rgb */ color: rgb(81, 83, 207);
/* oklch */ color: oklch(51.4% 0.187 276.9);

Tailwind

colors: {
  custom: {
    50: '#8e83df',
    500: '#5153cf',
    950: '#000000',
  },
}

SCSS

$custom: #5153cf;
$custom-light: #8e83df;
$custom-dark: #000000;

JSON

{
  "hex": "#5153cf",
  "rgb": {
    "r": 81,
    "g": 83,
    "b": 207
  },
  "hsl": {
    "h": 239.048,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.51383,
    "c": 0.18705,
    "h": 276.9
  },
  "luminance": 0.12441
}

Semantic roles & 50–950 ramp

primary

#5153CF

secondary

#D8D7A4

accent

#DE48E0

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #5153CF

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

Preview Lab → · Contrast checker → · Palette generator →