#5B9BBC#5B9BBC

#5B9BBC is a light, moderate cyan. Relative luminance 0.293; OKLCH L 65.9% C 0.082 H 232.4°. Best body text is #000000 at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#5B9BBC
RGB	rgb(91, 155, 188)
HSL	hsl(200, 42%, 55%)
HSV	hsv(200, 52%, 74%)
CMYK	cmyk(51.6%, 17.6%, 0%, 26.3%)
CIE-LAB	lab(61.04, -11.25, -23.40)
CIE-LCH	lch(61.04, 25.96, 244.32°)
OKLab	oklab(65.95% -0.0501 -0.065)
OKLCH	oklch(65.95% 0.082 232.4)
XYZ	xyz(25.1095, 29.2956, 51.8986)
Luminance	0.2930 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9BBC #BC7C5B

analogous

#5BBCAC #5B9BBC #5B6BBC

triadic

#5B9BBC #BC5B9B #9BBC5B

tetradic

#5B9BBC #AC5BBC #BC7C5B #6BBC5B

square

#5B9BBC #AC5BBC #BC7C5B #6BBC5B

split-complementary

#5B9BBC #BC5B6B #BCAC5B

monochromatic

#2D596F #3F7C9B #5B9BBC #86B5CE #B2D0E0

Accessibility & contrast

On white

3.06

#5B9BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.86

#5B9BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B9BBC

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9BBC	#FFFFFF	#000000	##000000
##5B9BBC	1.00	3.06	6.86	6.86
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.86	21.00	1.00	1.00
##000000	6.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B99BE

Deuteranopia (green-blind)

#7D8FBC

Tritanopia (blue-blind)

#22A4A6

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #5b9bbc;
/* rgb */ color: rgb(91, 155, 188);
/* oklch */ color: oklch(65.9% 0.082 232.4);

Tailwind

colors: {
  custom: {
    50: '#90b8d0',
    500: '#5b9bbc',
    950: '#000000',
  },
}

SCSS

$custom: #5b9bbc;
$custom-light: #90b8d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9bbc",
  "rgb": {
    "r": 91,
    "g": 155,
    "b": 188
  },
  "hsl": {
    "h": 200.412,
    "s": 41.991,
    "l": 54.706
  },
  "oklch": {
    "l": 0.65946,
    "c": 0.08211,
    "h": 232.4
  },
  "luminance": 0.29298
}

Semantic roles & 50–950 ramp

primary

#5B9BBC

secondary

#CEB3A5

accent

#8056D2

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1114

muted

#7E8082

Preview Lab

Preview with #5B9BBC

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

Preview Lab → · Contrast checker → · Palette generator →