#5188CC#5188CC

#5188CC is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.9% C 0.119 H 254.6°. Best body text is #000000 at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#5188CC
RGB	rgb(81, 136, 204)
HSL	hsl(213, 55%, 56%)
HSV	hsv(213, 60%, 80%)
CMYK	cmyk(60.3%, 33.3%, 0%, 20%)
CIE-LAB	lab(55.80, 2.51, -40.60)
CIE-LCH	lch(55.80, 40.68, 273.53°)
OKLab	oklab(61.92% -0.0316 -0.1148)
OKLCH	oklch(61.92% 0.119 254.6)
XYZ	xyz(23.0927, 23.7152, 60.4756)
Luminance	0.2372 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188CC #CC9551

analogous

#51C5CC #5188CC #5751CC

triadic

#5188CC #CC5188 #88CC51

tetradic

#5188CC #CC51C5 #CC9551 #51CC57

square

#5188CC #CC51C5 #CC9551 #51CC57

split-complementary

#5188CC #CC5751 #C5CC51

monochromatic

#254D7E #3369AD #5188CC #80A8DA #B0C9E8

Accessibility & contrast

On white

3.66

#5188CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.74

#5188CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188CC

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188CC	#FFFFFF	#000000	##000000
##5188CC	1.00	3.66	5.74	5.74
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.74	21.00	1.00	1.00
##000000	5.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B8CCF

Deuteranopia (green-blind)

#5B80CB

Tritanopia (blue-blind)

#0098A1

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5188cc;
/* rgb */ color: rgb(81, 136, 204);
/* oklch */ color: oklch(61.9% 0.119 254.6);

Tailwind

colors: {
  custom: {
    50: '#8caadc',
    500: '#5188cc',
    950: '#000000',
  },
}

SCSS

$custom: #5188cc;
$custom-light: #8caadc;
$custom-dark: #000000;

JSON

{
  "hex": "#5188cc",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 204
  },
  "hsl": {
    "h": 213.171,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.61919,
    "c": 0.11907,
    "h": 254.6
  },
  "luminance": 0.23717
}

Semantic roles & 50–950 ramp

primary

#5188CC

secondary

#D6BFA3

accent

#9C4ADE

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #5188CC

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

Preview Lab → · Contrast checker → · Palette generator →