#5181F6#5181F6

#5181F6 is a light, vivid blue. Relative luminance 0.241; OKLCH L 63.0% C 0.183 H 264.9°. Best body text is #000000 at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#5181F6
RGB	rgb(81, 129, 246)
HSL	hsl(223, 90%, 64%)
HSV	hsv(223, 67%, 96%)
CMYK	cmyk(67.1%, 47.6%, 0%, 3.5%)
CIE-LAB	lab(56.19, 21.03, -63.48)
CIE-LCH	lch(56.19, 66.87, 288.33°)
OKLab	oklab(62.97% -0.0164 -0.1819)
OKLCH	oklch(62.97% 0.183 264.9)
XYZ	xyz(27.8723, 24.1009, 90.3540)
Luminance	0.2410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5181F6 #F6C651

analogous

#51D4F6 #5181F6 #7451F6

triadic

#5181F6 #F65181 #81F651

tetradic

#5181F6 #F651D4 #F6C651 #51F674

square

#5181F6 #F651D4 #F6C651 #51F674

split-complementary

#5181F6 #F67451 #D4F651

monochromatic

#0A40C3 #1757F3 #5181F6 #8BABF9 #C5D5FC

Accessibility & contrast

On white

3.61

#5181F6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.82

#5181F6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5181F6

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5181F6	#FFFFFF	#000000	##000000
##5181F6	1.00	3.61	5.82	5.82
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.82	21.00	1.00	1.00
##000000	5.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#428FFA

Deuteranopia (green-blind)

#1880F4

Tritanopia (blue-blind)

#009CB0

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #5181f6;
/* rgb */ color: rgb(81, 129, 246);
/* oklch */ color: oklch(63.0% 0.183 264.9);

Tailwind

colors: {
  custom: {
    50: '#93a5fa',
    500: '#5181f6',
    950: '#000000',
  },
}

SCSS

$custom: #5181f6;
$custom-light: #93a5fa;
$custom-dark: #000000;

JSON

{
  "hex": "#5181f6",
  "rgb": {
    "r": 81,
    "g": 129,
    "b": 246
  },
  "hsl": {
    "h": 222.545,
    "s": 90.164,
    "l": 64.118
  },
  "oklch": {
    "l": 0.62965,
    "c": 0.18268,
    "h": 264.9
  },
  "luminance": 0.24104
}

Semantic roles & 50–950 ramp

primary

#5181F6

secondary

#EEDDB5

accent

#A300E6

background

#F9FAFF

surface

#F2F4FF

border

#CCCED7

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5181F6

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

Preview Lab → · Contrast checker → · Palette generator →