#5188BB#5188BB

#5188BB is a mid, moderate cyan. Relative luminance 0.229; OKLCH L 61.0% C 0.097 H 248.0°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#5188BB
RGB	rgb(81, 136, 187)
HSL	hsl(209, 44%, 53%)
HSV	hsv(209, 57%, 73%)
CMYK	cmyk(56.7%, 27.3%, 0%, 26.7%)
CIE-LAB	lab(55.01, -3.04, -32.19)
CIE-LCH	lch(55.01, 32.33, 264.60°)
OKLab	oklab(61.04% -0.0366 -0.0904)
OKLCH	oklch(61.04% 0.097 248)
XYZ	xyz(21.1639, 22.9437, 50.3174)
Luminance	0.2295 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5188BB #BB8451

analogous

#51BBB9 #5188BB #5153BB

triadic

#5188BB #BB5188 #88BB51

tetradic

#5188BB #B951BB #BB8451 #53BB51

square

#5188BB #B951BB #BB8451 #53BB51

split-complementary

#5188BB #BB5153 #BBB951

monochromatic

#294A69 #3A6995 #5188BB #7DA6CC #A9C4DD

Accessibility & contrast

On white

3.76

#5188BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#5188BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5188BB

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5188BB	#FFFFFF	#000000	##000000
##5188BB	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#738ABD

Deuteranopia (green-blind)

#657FBA

Tritanopia (blue-blind)

#00949A

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #5188bb;
/* rgb */ color: rgb(81, 136, 187);
/* oklch */ color: oklch(61.0% 0.097 248.0);

Tailwind

colors: {
  custom: {
    50: '#8aaacf',
    500: '#5188bb',
    950: '#000000',
  },
}

SCSS

$custom: #5188bb;
$custom-light: #8aaacf;
$custom-dark: #000000;

JSON

{
  "hex": "#5188bb",
  "rgb": {
    "r": 81,
    "g": 136,
    "b": 187
  },
  "hsl": {
    "h": 208.868,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.61043,
    "c": 0.09749,
    "h": 248
  },
  "luminance": 0.22946
}

Semantic roles & 50–950 ramp

primary

#5188BB

secondary

#CBB39D

accent

#9154D4

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #5188BB

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

Preview Lab → · Contrast checker → · Palette generator →