#5187CD#5187CD

#5187CD is a mid, vivid cyan. Relative luminance 0.235; OKLCH L 61.8% C 0.121 H 255.6°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#5187CD
RGB	rgb(81, 135, 205)
HSL	hsl(214, 55%, 56%)
HSV	hsv(214, 60%, 80%)
CMYK	cmyk(60.5%, 34.1%, 0%, 19.6%)
CIE-LAB	lab(55.57, 3.43, -41.54)
CIE-LCH	lch(55.57, 41.68, 274.72°)
OKLab	oklab(61.75% -0.0303 -0.1175)
OKLCH	oklch(61.75% 0.121 255.6)
XYZ	xyz(23.0728, 23.4830, 61.0625)
Luminance	0.2349 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5187CD #CD9751

analogous

#51C5CD #5187CD #5951CD

triadic

#5187CD #CD5187 #87CD51

tetradic

#5187CD #CD51C5 #CD9751 #51CD59

square

#5187CD #CD51C5 #CD9751 #51CD59

split-complementary

#5187CD #CD5951 #C5CD51

monochromatic

#254C7F #3268AF #5187CD #81A8DB #B0C9E8

Accessibility & contrast

On white

3.69

#5187CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#5187CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5187CD

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5187CD	#FFFFFF	#000000	##000000
##5187CD	1.00	3.69	5.70	5.70
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#698CD0

Deuteranopia (green-blind)

#5980CC

Tritanopia (blue-blind)

#0097A0

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #5187cd;
/* rgb */ color: rgb(81, 135, 205);
/* oklch */ color: oklch(61.8% 0.121 255.6);

Tailwind

colors: {
  custom: {
    50: '#8ca9dc',
    500: '#5187cd',
    950: '#000000',
  },
}

SCSS

$custom: #5187cd;
$custom-light: #8ca9dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5187cd",
  "rgb": {
    "r": 81,
    "g": 135,
    "b": 205
  },
  "hsl": {
    "h": 213.871,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.61751,
    "c": 0.12136,
    "h": 255.6
  },
  "luminance": 0.23485
}

Semantic roles & 50–950 ramp

primary

#5187CD

secondary

#D7C0A3

accent

#9E49DF

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #5187CD

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

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