#5B99BE#5B99BE

#5B99BE is a light, moderate cyan. Relative luminance 0.287; OKLCH L 65.6% C 0.085 H 236.2°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#5B99BE
RGB	rgb(91, 153, 190)
HSL	hsl(202, 43%, 55%)
HSV	hsv(202, 52%, 75%)
CMYK	cmyk(52.1%, 19.5%, 0%, 25.5%)
CIE-LAB	lab(60.54, -9.55, -25.30)
CIE-LCH	lch(60.54, 27.04, 249.32°)
OKLab	oklab(65.57% -0.0471 -0.0704)
OKLCH	oklch(65.57% 0.085 236.2)
XYZ	xyz(24.9965, 28.7223, 52.9319)
Luminance	0.2872 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B99BE #BE805B

analogous

#5BBEB1 #5B99BE #5B68BE

triadic

#5B99BE #BE5B99 #99BE5B

tetradic

#5B99BE #B15BBE #BE805B #68BE5B

square

#5B99BE #B15BBE #BE805B #68BE5B

split-complementary

#5B99BE #BE5B68 #BEB15B

monochromatic

#2D5872 #3E7A9D #5B99BE #87B4CF #B3D0E1

Accessibility & contrast

On white

3.11

#5B99BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#5B99BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B99BE

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B99BE	#FFFFFF	#000000	##000000
##5B99BE	1.00	3.11	6.74	6.74
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8898C0

Deuteranopia (green-blind)

#7A8DBD

Tritanopia (blue-blind)

#21A3A5

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #5b99be;
/* rgb */ color: rgb(91, 153, 190);
/* oklch */ color: oklch(65.6% 0.085 236.2);

Tailwind

colors: {
  custom: {
    50: '#90b7d1',
    500: '#5b99be',
    950: '#000000',
  },
}

SCSS

$custom: #5b99be;
$custom-light: #90b7d1;
$custom-dark: #000000;

JSON

{
  "hex": "#5b99be",
  "rgb": {
    "r": 91,
    "g": 153,
    "b": 190
  },
  "hsl": {
    "h": 202.424,
    "s": 43.231,
    "l": 55.098
  },
  "oklch": {
    "l": 0.6557,
    "c": 0.08472,
    "h": 236.2
  },
  "luminance": 0.28724
}

Semantic roles & 50–950 ramp

primary

#5B99BE

secondary

#CFB5A6

accent

#8455D3

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1114

muted

#7E8082

Preview Lab

Preview with #5B99BE

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

Preview Lab → · Contrast checker → · Palette generator →