#5BB3E5#5BB3E5

#5BB3E5 is a light, moderate cyan. Relative luminance 0.401; OKLCH L 73.2% C 0.111 H 236.0°. Best body text is #000000 at 9.02:1 contrast (WCAG AA passes).

Color values

HEX	#5BB3E5
RGB	rgb(91, 179, 229)
HSL	hsl(202, 73%, 63%)
HSV	hsv(202, 60%, 90%)
CMYK	cmyk(60.3%, 21.8%, 0%, 10.2%)
CIE-LAB	lab(69.55, -11.85, -32.99)
CIE-LCH	lch(69.55, 35.05, 250.24°)
OKLab	oklab(73.23% -0.0623 -0.0924)
OKLCH	oklch(73.23% 0.111 236)
XYZ	xyz(34.5720, 40.1181, 80.0352)
Luminance	0.4012 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB3E5 #E58D5B

analogous

#5BE5D2 #5BB3E5 #5B6EE5

triadic

#5BB3E5 #E55BB3 #B3E55B

tetradic

#5BB3E5 #D25BE5 #E58D5B #6EE55B

square

#5BB3E5 #D25BE5 #E58D5B #6EE55B

split-complementary

#5BB3E5 #E55B6E #E5D25B

monochromatic

#1B77AB #269BDD #5BB3E5 #90CBED #C5E4F6

Accessibility & contrast

On white

2.33

#5BB3E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.02

#5BB3E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB3E5

9.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB3E5	#FFFFFF	#000000	##000000
##5BB3E5	1.00	2.33	9.02	9.02
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.02	21.00	1.00	1.00
##000000	9.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB2E7

Deuteranopia (green-blind)

#88A4E4

Tritanopia (blue-blind)

#00C0C4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #5bb3e5;
/* rgb */ color: rgb(91, 179, 229);
/* oklch */ color: oklch(73.2% 0.111 236.0);

Tailwind

colors: {
  custom: {
    50: '#95c9ed',
    500: '#5bb3e5',
    950: '#000000',
  },
}

SCSS

$custom: #5bb3e5;
$custom-light: #95c9ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb3e5",
  "rgb": {
    "r": 91,
    "g": 179,
    "b": 229
  },
  "hsl": {
    "h": 201.739,
    "s": 72.632,
    "l": 62.745
  },
  "oklch": {
    "l": 0.73232,
    "c": 0.11144,
    "h": 236
  },
  "luminance": 0.40121
}

Semantic roles & 50–950 ramp

primary

#5BB3E5

secondary

#E7C7B5

accent

#5811D5

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB3E5

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

Preview Lab → · Contrast checker → · Palette generator →