#5180CC#5180CC

#5180CC is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.2% C 0.127 H 259.6°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#5180CC
RGB	rgb(81, 128, 204)
HSL	hsl(217, 55%, 56%)
HSV	hsv(217, 60%, 80%)
CMYK	cmyk(60.3%, 37.3%, 0%, 20%)
CIE-LAB	lab(53.54, 7.28, -44.17)
CIE-LCH	lch(53.54, 44.77, 279.36°)
OKLab	oklab(60.16% -0.023 -0.1253)
OKLCH	oklch(60.16% 0.127 259.6)
XYZ	xyz(22.0078, 21.5454, 60.1139)
Luminance	0.2155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5180CC #CC9D51

analogous

#51BECC #5180CC #5F51CC

triadic

#5180CC #CC5180 #80CC51

tetradic

#5180CC #CC51BE #CC9D51 #51CC5F

square

#5180CC #CC51BE #CC9D51 #51CC5F

split-complementary

#5180CC #CC5F51 #BECC51

monochromatic

#25477E #3361AD #5180CC #80A3DA #B0C5E8

Accessibility & contrast

On white

3.96

#5180CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#5180CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5180CC

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5180CC	#FFFFFF	#000000	##000000
##5180CC	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6086CF

Deuteranopia (green-blind)

#4F7BCA

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #5180cc;
/* rgb */ color: rgb(81, 128, 204);
/* oklch */ color: oklch(60.2% 0.127 259.6);

Tailwind

colors: {
  custom: {
    50: '#8ca4dc',
    500: '#5180cc',
    950: '#000000',
  },
}

SCSS

$custom: #5180cc;
$custom-light: #8ca4dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5180cc",
  "rgb": {
    "r": 81,
    "g": 128,
    "b": 204
  },
  "hsl": {
    "h": 217.073,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.60157,
    "c": 0.12739,
    "h": 259.6
  },
  "luminance": 0.21547
}

Semantic roles & 50–950 ramp

primary

#5180CC

secondary

#D6C2A3

accent

#A54ADE

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5180CC

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

Preview Lab → · Contrast checker → · Palette generator →