#5591CB#5591CB

#5591CB is a light, moderate cyan. Relative luminance 0.265; OKLCH L 64.1% C 0.108 H 249.1°. Best body text is #000000 at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#5591CB
RGB	rgb(85, 145, 203)
HSL	hsl(209, 53%, 56%)
HSV	hsv(209, 58%, 80%)
CMYK	cmyk(58.1%, 28.6%, 0%, 20.4%)
CIE-LAB	lab(58.50, -2.28, -35.79)
CIE-LCH	lch(58.50, 35.87, 266.36°)
OKLab	oklab(64.07% -0.0385 -0.1007)
OKLCH	oklch(64.07% 0.108 249.1)
XYZ	xyz(24.6473, 26.4917, 60.3029)
Luminance	0.2649 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5591CB #CB8F55

analogous

#55CBCA #5591CB #5556CB

triadic

#5591CB #CB5591 #91CB55

tetradic

#5591CB #CA55CB #CB8F55 #56CB55

square

#5591CB #CA55CB #CB8F55 #56CB55

split-complementary

#5591CB #CB5556 #CBCA55

monochromatic

#27547F #3572AE #5591CB #84AFD9 #B3CEE8

Accessibility & contrast

On white

3.33

#5591CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.30

#5591CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5591CB

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5591CB	#FFFFFF	#000000	##000000
##5591CB	1.00	3.33	6.30	6.30
#FFFFFF	3.33	1.00	21.00	21.00
#000000	6.30	21.00	1.00	1.00
##000000	6.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7993CE

Deuteranopia (green-blind)

#6987CA

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #5591cb;
/* rgb */ color: rgb(85, 145, 203);
/* oklch */ color: oklch(64.1% 0.108 249.1);

Tailwind

colors: {
  custom: {
    50: '#8eb1db',
    500: '#5591cb',
    950: '#000000',
  },
}

SCSS

$custom: #5591cb;
$custom-light: #8eb1db;
$custom-dark: #000000;

JSON

{
  "hex": "#5591cb",
  "rgb": {
    "r": 85,
    "g": 145,
    "b": 203
  },
  "hsl": {
    "h": 209.492,
    "s": 53.153,
    "l": 56.471
  },
  "oklch": {
    "l": 0.64069,
    "c": 0.1078,
    "h": 249.1
  },
  "luminance": 0.26494
}

Semantic roles & 50–950 ramp

primary

#5591CB

secondary

#D6BDA6

accent

#934BDD

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D1015

muted

#7E7F83

Preview Lab

Preview with #5591CB

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

Preview Lab → · Contrast checker → · Palette generator →