#5187BC#5187BC

#5187BC is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.9% C 0.100 H 249.3°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#5187BC
RGB	rgb(81, 135, 188)
HSL	hsl(210, 44%, 53%)
HSV	hsv(210, 57%, 74%)
CMYK	cmyk(56.9%, 28.2%, 0%, 26.3%)
CIE-LAB	lab(54.77, -2.14, -33.14)
CIE-LCH	lch(54.77, 33.21, 266.31°)
OKLab	oklab(60.86% -0.0351 -0.0931)
OKLCH	oklch(60.86% 0.1 249.3)
XYZ	xyz(21.1312, 22.7063, 50.8364)
Luminance	0.2271 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187BC #BC8651

analogous

#51BCBC #5187BC #5151BC

triadic

#5187BC #BC5187 #87BC51

tetradic

#5187BC #BC51BC #BC8651 #51BC51

square

#5187BC #BC51BC #BC8651 #51BC51

split-complementary

#5187BC #BC5151 #BCBC51

monochromatic

#294A6A #3A6896 #5187BC #7DA5CD #A9C4DE

Accessibility & contrast

On white

3.79

#5187BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#5187BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187BC

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187BC	#FFFFFF	#000000	##000000
##5187BC	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7189BE

Deuteranopia (green-blind)

#637EBB

Tritanopia (blue-blind)

#009399

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #5187bc;
/* rgb */ color: rgb(81, 135, 188);
/* oklch */ color: oklch(60.9% 0.100 249.3);

Tailwind

colors: {
  custom: {
    50: '#8aa9d0',
    500: '#5187bc',
    950: '#000000',
  },
}

SCSS

$custom: #5187bc;
$custom-light: #8aa9d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5187bc",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 188
  },
  "hsl": {
    "h": 209.72,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.60864,
    "c": 0.09954,
    "h": 249.3
  },
  "luminance": 0.22708
}

Semantic roles & 50–950 ramp

primary

#5187BC

secondary

#CCB49D

accent

#9354D4

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #5187BC

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

Preview Lab → · Contrast checker → · Palette generator →