#5251CF#5251CF

#5251CF is a mid, vivid blue. Relative luminance 0.122; OKLCH L 51.1% C 0.189 H 277.7°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#5251CF
RGB	rgb(82, 81, 207)
HSL	hsl(240, 57%, 56%)
HSV	hsv(240, 61%, 81%)
CMYK	cmyk(60.4%, 60.9%, 0%, 18.8%)
CIE-LAB	lab(41.50, 37.56, -65.22)
CIE-LCH	lch(41.50, 75.26, 299.94°)
OKLab	oklab(51.11% 0.0253 -0.1876)
OKLCH	oklch(51.11% 0.189 277.7)
XYZ	xyz(17.6810, 12.1824, 60.4391)
Luminance	0.1218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5251CF #CECF51

analogous

#518FCF #5251CF #9151CF

triadic

#5251CF #CF5251 #51CF52

tetradic

#5251CF #CF518F #CECF51 #51CF91

square

#5251CF #CF518F #CECF51 #51CF91

split-complementary

#5251CF #CF9151 #8FCF51

monochromatic

#252482 #3231B2 #5251CF #8281DC #B1B1E9

Accessibility & contrast

On white

6.11

#5251CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#5251CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5251CF

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5251CF	#FFFFFF	#000000	##FFFFFF
##5251CF	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D3

Deuteranopia (green-blind)

#005DCC

Tritanopia (blue-blind)

#007088

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5251cf;
/* rgb */ color: rgb(82, 81, 207);
/* oklch */ color: oklch(51.1% 0.189 277.7);

Tailwind

colors: {
  custom: {
    50: '#8f82df',
    500: '#5251cf',
    950: '#000000',
  },
}

SCSS

$custom: #5251cf;
$custom-light: #8f82df;
$custom-dark: #000000;

JSON

{
  "hex": "#5251cf",
  "rgb": {
    "r": 82,
    "g": 81,
    "b": 207
  },
  "hsl": {
    "h": 240.476,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.51106,
    "c": 0.18931,
    "h": 277.7
  },
  "luminance": 0.12184
}

Semantic roles & 50–950 ramp

primary

#5251CF

secondary

#D7D8A4

accent

#E048DF

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #5251CF

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

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