#5182CB#5182CB

#5182CB is a mid, vivid blue. Relative luminance 0.220; OKLCH L 60.5% C 0.124 H 258.2°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#5182CB
RGB	rgb(81, 130, 203)
HSL	hsl(216, 54%, 56%)
HSV	hsv(216, 60%, 80%)
CMYK	cmyk(60.1%, 36%, 0%, 20.4%)
CIE-LAB	lab(54.05, 5.75, -42.80)
CIE-LCH	lch(54.05, 43.18, 277.65°)
OKLab	oklab(60.54% -0.0254 -0.1212)
OKLCH	oklch(60.54% 0.124 258.2)
XYZ	xyz(22.1517, 22.0244, 59.5721)
Luminance	0.2203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5182CB #CB9A51

analogous

#51BFCB #5182CB #5D51CB

triadic

#5182CB #CB5182 #82CB51

tetradic

#5182CB #CB51BF #CB9A51 #51CB5D

square

#5182CB #CB51BF #CB9A51 #51CB5D

split-complementary

#5182CB #CB5D51 #BFCB51

monochromatic

#25487C #3364AC #5182CB #80A4D9 #AFC6E7

Accessibility & contrast

On white

3.89

#5182CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#5182CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5182CB

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5182CB	#FFFFFF	#000000	##000000
##5182CB	1.00	3.89	5.41	5.41
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6387CE

Deuteranopia (green-blind)

#537CC9

Tritanopia (blue-blind)

#00929D

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #5182cb;
/* rgb */ color: rgb(81, 130, 203);
/* oklch */ color: oklch(60.5% 0.124 258.2);

Tailwind

colors: {
  custom: {
    50: '#8ca5db',
    500: '#5182cb',
    950: '#000000',
  },
}

SCSS

$custom: #5182cb;
$custom-light: #8ca5db;
$custom-dark: #000000;

JSON

{
  "hex": "#5182cb",
  "rgb": {
    "r": 81,
    "g": 130,
    "b": 203
  },
  "hsl": {
    "h": 215.902,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.60538,
    "c": 0.12388,
    "h": 258.2
  },
  "luminance": 0.22026
}

Semantic roles & 50–950 ramp

primary

#5182CB

secondary

#D5C1A3

accent

#A24ADD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5182CB

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

Preview Lab → · Contrast checker → · Palette generator →