#5B99DA#5B99DA

#5B99DA is a light, moderate cyan. Relative luminance 0.301; OKLCH L 66.9% C 0.117 H 251.0°. Best body text is #000000 at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#5B99DA
RGB	rgb(91, 153, 218)
HSL	hsl(211, 63%, 61%)
HSV	hsv(211, 58%, 85%)
CMYK	cmyk(58.3%, 29.8%, 0%, 14.5%)
CIE-LAB	lab(61.71, -0.87, -39.14)
CIE-LCH	lch(61.71, 39.15, 268.73°)
OKLab	oklab(66.88% -0.038 -0.1103)
OKLCH	oklch(66.88% 0.117 251)
XYZ	xyz(28.3560, 30.0661, 70.6251)
Luminance	0.3007 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B99DA #DA9C5B

analogous

#5BD8DA #5B99DA #5C5BDA

triadic

#5B99DA #DA5B99 #99DA5B

tetradic

#5B99DA #DA5BD8 #DA9C5B #5BDA5C

square

#5B99DA #DA5BD8 #DA9C5B #5BDA5C

split-complementary

#5B99DA #DA5C5B #D8DA5B

monochromatic

#225C98 #2E7ACA #5B99DA #8DB8E5 #BFD7F1

Accessibility & contrast

On white

2.99

#5B99DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.01

#5B99DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B99DA

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B99DA	#FFFFFF	#000000	##000000
##5B99DA	1.00	2.99	7.01	7.01
#FFFFFF	2.99	1.00	21.00	21.00
#000000	7.01	21.00	1.00	1.00
##000000	7.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7E9CDD

Deuteranopia (green-blind)

#6D8FD9

Tritanopia (blue-blind)

#00A8B0

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #5b99da;
/* rgb */ color: rgb(91, 153, 218);
/* oklch */ color: oklch(66.9% 0.117 251.0);

Tailwind

colors: {
  custom: {
    50: '#93b6e5',
    500: '#5b99da',
    950: '#000000',
  },
}

SCSS

$custom: #5b99da;
$custom-light: #93b6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#5b99da",
  "rgb": {
    "r": 91,
    "g": 153,
    "b": 218
  },
  "hsl": {
    "h": 210.709,
    "s": 63.184,
    "l": 60.588
  },
  "oklch": {
    "l": 0.66885,
    "c": 0.11662,
    "h": 251
  },
  "luminance": 0.30069
}

Semantic roles & 50–950 ramp

primary

#5B99DA

secondary

#E1C9B0

accent

#751BCB

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #5B99DA

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

Preview Lab → · Contrast checker → · Palette generator →