#5180CB#5180CB

#5180CB is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.1% C 0.126 H 259.4°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#5180CB
RGB	rgb(81, 128, 203)
HSL	hsl(217, 54%, 56%)
HSV	hsv(217, 60%, 80%)
CMYK	cmyk(60.1%, 36.9%, 0%, 20.4%)
CIE-LAB	lab(53.49, 6.95, -43.69)
CIE-LCH	lch(53.49, 44.24, 279.04°)
OKLab	oklab(60.1% -0.0232 -0.1239)
OKLCH	oklch(60.1% 0.126 259.4)
XYZ	xyz(21.8882, 21.4975, 59.4843)
Luminance	0.2150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5180CB #CB9C51

analogous

#51BDCB #5180CB #5F51CB

triadic

#5180CB #CB5180 #80CB51

tetradic

#5180CB #CB51BD #CB9C51 #51CB5F

square

#5180CB #CB51BD #CB9C51 #51CB5F

split-complementary

#5180CB #CB5F51 #BDCB51

monochromatic

#25477C #3362AC #5180CB #80A2D9 #AFC5E7

Accessibility & contrast

On white

3.96

#5180CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#5180CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5180CB

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5180CB	#FFFFFF	#000000	##000000
##5180CB	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6086CE

Deuteranopia (green-blind)

#507BC9

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #5180cb;
/* rgb */ color: rgb(81, 128, 203);
/* oklch */ color: oklch(60.1% 0.126 259.4);

Tailwind

colors: {
  custom: {
    50: '#8ca4db',
    500: '#5180cb',
    950: '#000000',
  },
}

SCSS

$custom: #5180cb;
$custom-light: #8ca4db;
$custom-dark: #000000;

JSON

{
  "hex": "#5180cb",
  "rgb": {
    "r": 81,
    "g": 128,
    "b": 203
  },
  "hsl": {
    "h": 216.885,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.601,
    "c": 0.12603,
    "h": 259.4
  },
  "luminance": 0.21499
}

Semantic roles & 50–950 ramp

primary

#5180CB

secondary

#D5C2A3

accent

#A54ADD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5180CB

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

Preview Lab → · Contrast checker → · Palette generator →