#5B99DD#5B99DD

#5B99DD is a light, vivid cyan. Relative luminance 0.302; OKLCH L 67.0% C 0.120 H 252.0°. Best body text is #000000 at 7.05:1 contrast (WCAG AA passes).

Color values

HEX	#5B99DD
RGB	rgb(91, 153, 221)
HSL	hsl(211, 66%, 61%)
HSV	hsv(211, 59%, 87%)
CMYK	cmyk(58.8%, 30.8%, 0%, 13.3%)
CIE-LAB	lab(61.85, 0.10, -40.59)
CIE-LCH	lch(61.85, 40.59, 270.14°)
OKLab	oklab(67.04% -0.0371 -0.1145)
OKLCH	oklch(67.04% 0.12 252)
XYZ	xyz(28.7521, 30.2245, 72.7113)
Luminance	0.3023 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B99DD #DD9F5B

analogous

#5BDADD #5B99DD #5E5BDD

triadic

#5B99DD #DD5B99 #99DD5B

tetradic

#5B99DD #DD5BDA #DD9F5B #5BDD5E

square

#5B99DD #DD5BDA #DD9F5B #5BDD5E

split-complementary

#5B99DD #DD5E5B #DADD5B

monochromatic

#215C9D #2B7AD0 #5B99DD #8EB9E8 #C0D8F2

Accessibility & contrast

On white

2.98

#5B99DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.05

#5B99DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B99DD

7.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B99DD	#FFFFFF	#000000	##000000
##5B99DD	1.00	2.98	7.05	7.05
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.05	21.00	1.00	1.00
##000000	7.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9CE0

Deuteranopia (green-blind)

#6B90DC

Tritanopia (blue-blind)

#00A9B1

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #5b99dd;
/* rgb */ color: rgb(91, 153, 221);
/* oklch */ color: oklch(67.0% 0.120 252.0);

Tailwind

colors: {
  custom: {
    50: '#93b6e8',
    500: '#5b99dd',
    950: '#000000',
  },
}

SCSS

$custom: #5b99dd;
$custom-light: #93b6e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b99dd",
  "rgb": {
    "r": 91,
    "g": 153,
    "b": 221
  },
  "hsl": {
    "h": 211.385,
    "s": 65.657,
    "l": 61.176
  },
  "oklch": {
    "l": 0.67037,
    "c": 0.12035,
    "h": 252
  },
  "luminance": 0.30227
}

Semantic roles & 50–950 ramp

primary

#5B99DD

secondary

#E2CBB1

accent

#7718CE

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #5B99DD

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

Preview Lab → · Contrast checker → · Palette generator →