#5B9CDB#5B9CDB

#5B9CDB is a light, moderate cyan. Relative luminance 0.311; OKLCH L 67.6% C 0.115 H 249.2°. Best body text is #000000 at 7.22:1 contrast (WCAG AA passes).

Color values

HEX	#5B9CDB
RGB	rgb(91, 156, 219)
HSL	hsl(210, 64%, 61%)
HSV	hsv(210, 58%, 86%)
CMYK	cmyk(58.4%, 28.8%, 0%, 14.1%)
CIE-LAB	lab(62.60, -2.26, -38.30)
CIE-LCH	lch(62.60, 38.37, 266.62°)
OKLab	oklab(67.6% -0.041 -0.1078)
OKLCH	oklch(67.6% 0.115 249.2)
XYZ	xyz(28.9844, 31.1130, 71.4821)
Luminance	0.3112 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9CDB #DB9A5B

analogous

#5BDBDA #5B9CDB #5B5CDB

triadic

#5B9CDB #DB5B9C #9CDB5B

tetradic

#5B9CDB #DA5BDB #DB9A5B #5CDB5B

square

#5B9CDB #DA5BDB #DB9A5B #5CDB5B

split-complementary

#5B9CDB #DB5B5C #DBDA5B

monochromatic

#225F9A #2D7ECC #5B9CDB #8DBAE6 #BFD9F1

Accessibility & contrast

On white

2.91

#5B9CDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.22

#5B9CDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9CDB

7.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9CDB	#FFFFFF	#000000	##000000
##5B9CDB	1.00	2.91	7.22	7.22
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.22	21.00	1.00	1.00
##000000	7.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#819EDE

Deuteranopia (green-blind)

#7092DA

Tritanopia (blue-blind)

#00ABB2

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #5b9cdb;
/* rgb */ color: rgb(91, 156, 219);
/* oklch */ color: oklch(67.6% 0.115 249.2);

Tailwind

colors: {
  custom: {
    50: '#93b9e6',
    500: '#5b9cdb',
    950: '#000000',
  },
}

SCSS

$custom: #5b9cdb;
$custom-light: #93b9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9cdb",
  "rgb": {
    "r": 91,
    "g": 156,
    "b": 219
  },
  "hsl": {
    "h": 209.531,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.67601,
    "c": 0.11533,
    "h": 249.2
  },
  "luminance": 0.31116
}

Semantic roles & 50–950 ramp

primary

#5B9CDB

secondary

#E1C9B1

accent

#711ACC

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #5B9CDB

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

Preview Lab → · Contrast checker → · Palette generator →