#5B99BC#5B99BC

#5B99BC is a light, moderate cyan. Relative luminance 0.286; OKLCH L 65.5% C 0.083 H 234.7°. Best body text is #000000 at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#5B99BC
RGB	rgb(91, 153, 188)
HSL	hsl(202, 42%, 55%)
HSV	hsv(202, 52%, 74%)
CMYK	cmyk(51.6%, 18.6%, 0%, 26.3%)
CIE-LAB	lab(60.46, -10.15, -24.29)
CIE-LCH	lch(60.46, 26.33, 247.33°)
OKLab	oklab(65.48% -0.0478 -0.0676)
OKLCH	oklch(65.48% 0.083 234.7)
XYZ	xyz(24.7794, 28.6354, 51.7886)
Luminance	0.2864 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B99BC #BC7E5B

analogous

#5BBCAE #5B99BC #5B69BC

triadic

#5B99BC #BC5B99 #99BC5B

tetradic

#5B99BC #AE5BBC #BC7E5B #69BC5B

square

#5B99BC #AE5BBC #BC7E5B #69BC5B

split-complementary

#5B99BC #BC5B69 #BCAE5B

monochromatic

#2D576F #3F7A9B #5B99BC #86B4CE #B2CFE0

Accessibility & contrast

On white

3.12

#5B99BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.73

#5B99BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B99BC

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B99BC	#FFFFFF	#000000	##000000
##5B99BC	1.00	3.12	6.73	6.73
#FFFFFF	3.12	1.00	21.00	21.00
#000000	6.73	21.00	1.00	1.00
##000000	6.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8998BE

Deuteranopia (green-blind)

#7B8DBB

Tritanopia (blue-blind)

#23A2A4

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #5b99bc;
/* rgb */ color: rgb(91, 153, 188);
/* oklch */ color: oklch(65.5% 0.083 234.7);

Tailwind

colors: {
  custom: {
    50: '#90b7d0',
    500: '#5b99bc',
    950: '#000000',
  },
}

SCSS

$custom: #5b99bc;
$custom-light: #90b7d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5b99bc",
  "rgb": {
    "r": 91,
    "g": 153,
    "b": 188
  },
  "hsl": {
    "h": 201.649,
    "s": 41.991,
    "l": 54.706
  },
  "oklch": {
    "l": 0.65483,
    "c": 0.08276,
    "h": 234.7
  },
  "luminance": 0.28637
}

Semantic roles & 50–950 ramp

primary

#5B99BC

secondary

#CEB4A5

accent

#8356D2

background

#F9FBFC

surface

#F1F6F9

border

#CBD0D2

text

#0D1114

muted

#7E8082

Preview Lab

Preview with #5B99BC

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

Preview Lab → · Contrast checker → · Palette generator →