#5B9BDB#5B9BDB

#5B9BDB is a light, moderate cyan. Relative luminance 0.308; OKLCH L 67.4% C 0.116 H 249.9°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#5B9BDB
RGB	rgb(91, 155, 219)
HSL	hsl(210, 64%, 61%)
HSV	hsv(210, 58%, 86%)
CMYK	cmyk(58.4%, 29.2%, 0%, 14.1%)
CIE-LAB	lab(62.32, -1.69, -38.74)
CIE-LCH	lch(62.32, 38.78, 267.50°)
OKLab	oklab(67.38% -0.0399 -0.1091)
OKLCH	oklch(67.38% 0.116 249.9)
XYZ	xyz(28.8173, 30.7787, 71.4264)
Luminance	0.3078 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B9BDB #DB9B5B

analogous

#5BDBDB #5B9BDB #5B5BDB

triadic

#5B9BDB #DB5B9B #9BDB5B

tetradic

#5B9BDB #DB5BDB #DB9B5B #5BDB5B

square

#5B9BDB #DB5BDB #DB9B5B #5BDB5B

split-complementary

#5B9BDB #DB5B5B #DBDB5B

monochromatic

#225E9A #2D7CCC #5B9BDB #8DBAE6 #BFD8F1

Accessibility & contrast

On white

2.93

#5B9BDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.16

#5B9BDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5B9BDB

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B9BDB	#FFFFFF	#000000	##000000
##5B9BDB	1.00	2.93	7.16	7.16
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.16	21.00	1.00	1.00
##000000	7.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#809EDE

Deuteranopia (green-blind)

#6F91DA

Tritanopia (blue-blind)

#00AAB1

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #5b9bdb;
/* rgb */ color: rgb(91, 155, 219);
/* oklch */ color: oklch(67.4% 0.116 249.9);

Tailwind

colors: {
  custom: {
    50: '#93b8e6',
    500: '#5b9bdb',
    950: '#000000',
  },
}

SCSS

$custom: #5b9bdb;
$custom-light: #93b8e6;
$custom-dark: #000000;

JSON

{
  "hex": "#5b9bdb",
  "rgb": {
    "r": 91,
    "g": 155,
    "b": 219
  },
  "hsl": {
    "h": 210,
    "s": 64,
    "l": 60.784
  },
  "oklch": {
    "l": 0.67379,
    "c": 0.11615,
    "h": 249.9
  },
  "luminance": 0.30781
}

Semantic roles & 50–950 ramp

primary

#5B9BDB

secondary

#E1C9B1

accent

#731ACC

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1116

muted

#7E8084

Preview Lab

Preview with #5B9BDB

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

Preview Lab → · Contrast checker → · Palette generator →