#5180CF#5180CF

#5180CF is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.3% C 0.131 H 260.2°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#5180CF
RGB	rgb(81, 128, 207)
HSL	hsl(218, 57%, 56%)
HSV	hsv(218, 61%, 81%)
CMYK	cmyk(60.9%, 38.2%, 0%, 18.8%)
CIE-LAB	lab(53.70, 8.29, -45.63)
CIE-LCH	lch(53.70, 46.37, 280.30°)
OKLab	oklab(60.33% -0.0223 -0.1295)
OKLCH	oklch(60.33% 0.131 260.2)
XYZ	xyz(22.3710, 21.6907, 62.0272)
Luminance	0.2169 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5180CF #CFA051

analogous

#51BFCF #5180CF #6151CF

triadic

#5180CF #CF5180 #80CF51

tetradic

#5180CF #CF51BF #CFA051 #51CF61

square

#5180CF #CF51BF #CFA051 #51CF61

split-complementary

#5180CF #CF6151 #BFCF51

monochromatic

#244782 #3161B2 #5180CF #81A3DC #B1C6E9

Accessibility & contrast

On white

3.93

#5180CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#5180CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5180CF

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5180CF	#FFFFFF	#000000	##000000
##5180CF	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E87D2

Deuteranopia (green-blind)

#4D7BCD

Tritanopia (blue-blind)

#00929D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #5180cf;
/* rgb */ color: rgb(81, 128, 207);
/* oklch */ color: oklch(60.3% 0.131 260.2);

Tailwind

colors: {
  custom: {
    50: '#8ca4de',
    500: '#5180cf',
    950: '#000000',
  },
}

SCSS

$custom: #5180cf;
$custom-light: #8ca4de;
$custom-dark: #000000;

JSON

{
  "hex": "#5180cf",
  "rgb": {
    "r": 81,
    "g": 128,
    "b": 207
  },
  "hsl": {
    "h": 217.619,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.60329,
    "c": 0.13145,
    "h": 260.2
  },
  "luminance": 0.21693
}

Semantic roles & 50–950 ramp

primary

#5180CF

secondary

#D8C4A4

accent

#A748E0

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5180CF

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

Preview Lab → · Contrast checker → · Palette generator →