#5180E4#5180E4

#5180E4 is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.6% C 0.160 H 263.5°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#5180E4
RGB	rgb(81, 128, 228)
HSL	hsl(221, 73%, 61%)
HSV	hsv(221, 64%, 89%)
CMYK	cmyk(64.5%, 43.9%, 0%, 10.6%)
CIE-LAB	lab(54.85, 15.44, -55.61)
CIE-LCH	lch(54.85, 57.71, 285.51°)
OKLab	oklab(61.6% -0.0181 -0.1588)
OKLCH	oklch(61.6% 0.16 263.5)
XYZ	xyz(25.1112, 22.7867, 76.4587)
Luminance	0.2279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5180E4 #E4B551

analogous

#51CAE4 #5180E4 #6B51E4

triadic

#5180E4 #E45180 #80E451

tetradic

#5180E4 #E451CA #E4B551 #51E46B

square

#5180E4 #E451CA #E4B551 #51E46B

split-complementary

#5180E4 #E46B51 #CAE451

monochromatic

#1945A2 #215BD7 #5180E4 #86A7EC #BBCDF4

Accessibility & contrast

On white

3.78

#5180E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#5180E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5180E4

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5180E4	#FFFFFF	#000000	##000000
##5180E4	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#508AE8

Deuteranopia (green-blind)

#387DE2

Tritanopia (blue-blind)

#0097A7

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #5180e4;
/* rgb */ color: rgb(81, 128, 228);
/* oklch */ color: oklch(61.6% 0.160 263.5);

Tailwind

colors: {
  custom: {
    50: '#90a4ed',
    500: '#5180e4',
    950: '#000000',
  },
}

SCSS

$custom: #5180e4;
$custom-light: #90a4ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5180e4",
  "rgb": {
    "r": 81,
    "g": 128,
    "b": 228
  },
  "hsl": {
    "h": 220.816,
    "s": 73.134,
    "l": 60.588
  },
  "oklch": {
    "l": 0.61596,
    "c": 0.15985,
    "h": 263.5
  },
  "luminance": 0.22789
}

Semantic roles & 50–950 ramp

primary

#5180E4

secondary

#E4D2AC

accent

#9610D5

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #5180E4

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

Preview Lab → · Contrast checker → · Palette generator →