#5191F2#5191F2

#5191F2 is a light, vivid blue. Relative luminance 0.284; OKLCH L 66.0% C 0.159 H 258.5°. Best body text is #000000 at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#5191F2
RGB	rgb(81, 145, 242)
HSL	hsl(216, 86%, 63%)
HSV	hsv(216, 67%, 95%)
CMYK	cmyk(66.5%, 40.1%, 0%, 5.1%)
CIE-LAB	lab(60.26, 10.00, -54.76)
CIE-LCH	lch(60.26, 55.67, 280.34°)
OKLab	oklab(66.02% -0.0316 -0.1561)
OKLCH	oklch(66.02% 0.159 258.5)
XYZ	xyz(29.5400, 28.4080, 87.9137)
Luminance	0.2841 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5191F2 #F2B251

analogous

#51E1F2 #5191F2 #6151F2

triadic

#5191F2 #F25191 #91F251

tetradic

#5191F2 #F251E1 #F2B251 #51F261

square

#5191F2 #F251E1 #F2B251 #51F261

split-complementary

#5191F2 #F26151 #E1F251

monochromatic

#0E53BB #186DEE #5191F2 #8AB5F6 #C3D9FB

Accessibility & contrast

On white

3.14

#5191F2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.68

#5191F2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5191F2

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5191F2	#FFFFFF	#000000	##000000
##5191F2	1.00	3.14	6.68	6.68
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.68	21.00	1.00	1.00
##000000	6.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6499F6

Deuteranopia (green-blind)

#4C8AF0

Tritanopia (blue-blind)

#00A7B6

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #5191f2;
/* rgb */ color: rgb(81, 145, 242);
/* oklch */ color: oklch(66.0% 0.159 258.5);

Tailwind

colors: {
  custom: {
    50: '#92b0f7',
    500: '#5191f2',
    950: '#000000',
  },
}

SCSS

$custom: #5191f2;
$custom-light: #92b0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#5191f2",
  "rgb": {
    "r": 81,
    "g": 145,
    "b": 242
  },
  "hsl": {
    "h": 216.149,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.66022,
    "c": 0.15927,
    "h": 258.5
  },
  "luminance": 0.28411
}

Semantic roles & 50–950 ramp

primary

#5191F2

secondary

#ECD5B3

accent

#8A03E3

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E1017

muted

#7E7F85

Preview Lab

Preview with #5191F2

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

Preview Lab → · Contrast checker → · Palette generator →