#5BB9DE#5BB9DE

#5BB9DE is a light, moderate cyan. Relative luminance 0.422; OKLCH L 74.3% C 0.103 H 226.5°. Best body text is #000000 at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#5BB9DE
RGB	rgb(91, 185, 222)
HSL	hsl(197, 66%, 61%)
HSV	hsv(197, 59%, 87%)
CMYK	cmyk(59%, 16.7%, 0%, 12.9%)
CIE-LAB	lab(71.00, -17.17, -26.94)
CIE-LCH	lch(71.00, 31.94, 237.49°)
OKLab	oklab(74.3% -0.0712 -0.075)
OKLCH	oklch(74.3% 0.103 226.5)
XYZ	xyz(34.8430, 42.1926, 75.4008)
Luminance	0.4220 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB9DE #DE805B

analogous

#5BDEC2 #5BB9DE #5B78DE

triadic

#5BB9DE #DE5BB9 #B9DE5B

tetradic

#5BB9DE #C25BDE #DE805B #78DE5B

square

#5BB9DE #C25BDE #DE805B #78DE5B

split-complementary

#5BB9DE #DE5B78 #DEC25B

monochromatic

#207B9F #2AA2D2 #5BB9DE #8ECFE8 #C1E4F3

Accessibility & contrast

On white

2.22

#5BB9DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.44

#5BB9DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB9DE

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB9DE	#FFFFFF	#000000	##000000
##5BB9DE	1.00	2.22	9.44	9.44
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.44	21.00	1.00	1.00
##000000	9.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B6E0

Deuteranopia (green-blind)

#92A8DE

Tritanopia (blue-blind)

#00C4C5

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #5bb9de;
/* rgb */ color: rgb(91, 185, 222);
/* oklch */ color: oklch(74.3% 0.103 226.5);

Tailwind

colors: {
  custom: {
    50: '#94cee8',
    500: '#5bb9de',
    950: '#000000',
  },
}

SCSS

$custom: #5bb9de;
$custom-light: #94cee8;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb9de",
  "rgb": {
    "r": 91,
    "g": 185,
    "b": 222
  },
  "hsl": {
    "h": 196.947,
    "s": 66.497,
    "l": 61.373
  },
  "oklch": {
    "l": 0.74298,
    "c": 0.10344,
    "h": 226.5
  },
  "luminance": 0.42196
}

Semantic roles & 50–950 ramp

primary

#5BB9DE

secondary

#E3C0B2

accent

#4B17CE

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB9DE

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

Preview Lab → · Contrast checker → · Palette generator →