#5166C2#5166C2

#5166C2 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.0% C 0.145 H 271.2°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#5166C2
RGB	rgb(81, 102, 194)
HSL	hsl(229, 48%, 54%)
HSV	hsv(229, 58%, 76%)
CMYK	cmyk(58.2%, 47.4%, 0%, 23.9%)
CIE-LAB	lab(45.83, 19.97, -50.73)
CIE-LCH	lch(45.83, 54.52, 291.48°)
OKLab	oklab(54.05% 0.0029 -0.1448)
OKLCH	oklch(54.05% 0.145 271.2)
XYZ	xyz(17.8791, 15.1457, 53.0097)
Luminance	0.1515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5166C2 #C2AD51

analogous

#519FC2 #5166C2 #7551C2

triadic

#5166C2 #C25166 #66C251

tetradic

#5166C2 #C2519F #C2AD51 #51C275

square

#5166C2 #C2519F #C2AD51 #51C275

split-complementary

#5166C2 #C27551 #9FC251

monochromatic

#283571 #374B9E #5166C2 #7E8ED2 #ACB6E2

Accessibility & contrast

On white

5.21

#5166C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#5166C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5166C2

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5166C2	#FFFFFF	#000000	##FFFFFF
##5166C2	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A72C5

Deuteranopia (green-blind)

#2868C0

Tritanopia (blue-blind)

#007B8B

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #5166c2;
/* rgb */ color: rgb(81, 102, 194);
/* oklch */ color: oklch(54.0% 0.145 271.2);

Tailwind

colors: {
  custom: {
    50: '#8b91d5',
    500: '#5166c2',
    950: '#000000',
  },
}

SCSS

$custom: #5166c2;
$custom-light: #8b91d5;
$custom-dark: #000000;

JSON

{
  "hex": "#5166c2",
  "rgb": {
    "r": 81,
    "g": 102,
    "b": 194
  },
  "hsl": {
    "h": 228.85,
    "s": 48.085,
    "l": 53.922
  },
  "oklch": {
    "l": 0.54045,
    "c": 0.14484,
    "h": 271.2
  },
  "luminance": 0.15147
}

Semantic roles & 50–950 ramp

primary

#5166C2

secondary

#D0C79F

accent

#BE50D8

background

#F9F8FD

surface

#F1F0FA

border

#CBCBD3

text

#0D0C14

muted

#7E7D83

Preview Lab

Preview with #5166C2

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

Preview Lab → · Contrast checker → · Palette generator →