#5188BF#5188BF

#5188BF is a mid, moderate cyan. Relative luminance 0.231; OKLCH L 61.2% C 0.102 H 249.8°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#5188BF
RGB	rgb(81, 136, 191)
HSL	hsl(210, 46%, 53%)
HSV	hsv(210, 58%, 75%)
CMYK	cmyk(57.6%, 28.8%, 0%, 25.1%)
CIE-LAB	lab(55.19, -1.75, -34.19)
CIE-LCH	lch(55.19, 34.23, 267.07°)
OKLab	oklab(61.24% -0.0353 -0.0962)
OKLCH	oklch(61.24% 0.102 249.8)
XYZ	xyz(21.5981, 23.1174, 52.6040)
Luminance	0.2312 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188BF #BF8851

analogous

#51BFBF #5188BF #5151BF

triadic

#5188BF #BF5188 #88BF51

tetradic

#5188BF #BF51BF #BF8851 #51BF51

square

#5188BF #BF51BF #BF8851 #51BF51

split-complementary

#5188BF #BF5151 #BFBF51

monochromatic

#284B6D #39699A #5188BF #7EA7CF #AAC5E0

Accessibility & contrast

On white

3.73

#5188BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#5188BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188BF

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188BF	#FFFFFF	#000000	##000000
##5188BF	1.00	3.73	5.62	5.62
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#718AC1

Deuteranopia (green-blind)

#627FBE

Tritanopia (blue-blind)

#00959B

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5188bf;
/* rgb */ color: rgb(81, 136, 191);
/* oklch */ color: oklch(61.2% 0.102 249.8);

Tailwind

colors: {
  custom: {
    50: '#8aaad2',
    500: '#5188bf',
    950: '#000000',
  },
}

SCSS

$custom: #5188bf;
$custom-light: #8aaad2;
$custom-dark: #000000;

JSON

{
  "hex": "#5188bf",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 191
  },
  "hsl": {
    "h": 210,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.61242,
    "c": 0.10244,
    "h": 249.8
  },
  "luminance": 0.23119
}

Semantic roles & 50–950 ramp

primary

#5188BF

secondary

#CEB69E

accent

#9452D6

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #5188BF

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

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