#5B9FDB#5B9FDB

#5B9FDB is a light, moderate cyan. Relative luminance 0.321; OKLCH L 68.3% C 0.113 H 247.0°. Best body text is #000000 at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#5B9FDB
RGB	rgb(91, 159, 219)
HSL	hsl(208, 64%, 61%)
HSV	hsv(208, 58%, 86%)
CMYK	cmyk(58.4%, 27.4%, 0%, 14.1%)
CIE-LAB	lab(63.45, -3.96, -36.98)
CIE-LCH	lch(63.45, 37.19, 263.89°)
OKLab	oklab(68.27% -0.0442 -0.1039)
OKLCH	oklch(68.27% 0.113 247)
XYZ	xyz(29.4940, 32.1322, 71.6519)
Luminance	0.3214 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9FDB #DB975B

analogous

#5BDBD7 #5B9FDB #5B5FDB

triadic

#5B9FDB #DB5B9F #9FDB5B

tetradic

#5B9FDB #D75BDB #DB975B #5FDB5B

square

#5B9FDB #D75BDB #DB975B #5FDB5B

split-complementary

#5B9FDB #DB5B5F #DBD75B

monochromatic

#22629A #2D81CC #5B9FDB #8DBCE6 #BFDAF1

Accessibility & contrast

On white

2.83

#5B9FDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.43

#5B9FDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9FDB

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9FDB	#FFFFFF	#000000	##000000
##5B9FDB	1.00	2.83	7.43	7.43
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.43	21.00	1.00	1.00
##000000	7.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#85A1DE

Deuteranopia (green-blind)

#7494DA

Tritanopia (blue-blind)

#00ADB4

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #5b9fdb;
/* rgb */ color: rgb(91, 159, 219);
/* oklch */ color: oklch(68.3% 0.113 247.0);

Tailwind

colors: {
  custom: {
    50: '#93bbe6',
    500: '#5b9fdb',
    950: '#000000',
  },
}

SCSS

$custom: #5b9fdb;
$custom-light: #93bbe6;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9fdb",
  "rgb": {
    "r": 91,
    "g": 159,
    "b": 219
  },
  "hsl": {
    "h": 208.125,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.68269,
    "c": 0.11296,
    "h": 247
  },
  "luminance": 0.32135
}

Semantic roles & 50–950 ramp

primary

#5B9FDB

secondary

#E1C7B1

accent

#6D1ACC

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #5B9FDB

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

Preview Lab → · Contrast checker → · Palette generator →