#5BC3EF#5BC3EF

#5BC3EF is a light, moderate cyan. Relative luminance 0.475; OKLCH L 77.3% C 0.114 H 228.7°. Best body text is #000000 at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#5BC3EF
RGB	rgb(91, 195, 239)
HSL	hsl(198, 82%, 65%)
HSV	hsv(198, 62%, 94%)
CMYK	cmyk(61.9%, 18.4%, 0%, 6.3%)
CIE-LAB	lab(74.50, -17.25, -30.78)
CIE-LCH	lch(74.50, 35.29, 240.73°)
OKLab	oklab(77.29% -0.0755 -0.086)
OKLCH	oklch(77.29% 0.114 228.7)
XYZ	xyz(39.4034, 47.4824, 88.7330)
Luminance	0.4749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BC3EF #EF875B

analogous

#5BEFD1 #5BC3EF #5B79EF

triadic

#5BC3EF #EF5BC3 #C3EF5B

tetradic

#5BC3EF #D15BEF #EF875B #79EF5B

square

#5BC3EF #D15BEF #EF875B #79EF5B

split-complementary

#5BC3EF #EF5B79 #EFD15B

monochromatic

#128ABD #23AFEA #5BC3EF #93D7F4 #CBECFA

Accessibility & contrast

On white

2.00

#5BC3EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.50

#5BC3EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BC3EF

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BC3EF	#FFFFFF	#000000	##000000
##5BC3EF	1.00	2.00	10.50	10.50
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.50	21.00	1.00	1.00
##000000	10.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ACC0F1

Deuteranopia (green-blind)

#97B1EE

Tritanopia (blue-blind)

#00CFD1

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #5bc3ef;
/* rgb */ color: rgb(91, 195, 239);
/* oklch */ color: oklch(77.3% 0.114 228.7);

Tailwind

colors: {
  custom: {
    50: '#97d5f4',
    500: '#5bc3ef',
    950: '#000000',
  },
}

SCSS

$custom: #5bc3ef;
$custom-light: #97d5f4;
$custom-dark: #000000;

JSON

{
  "hex": "#5bc3ef",
  "rgb": {
    "r": 91,
    "g": 195,
    "b": 239
  },
  "hsl": {
    "h": 197.838,
    "s": 82.222,
    "l": 64.706
  },
  "oklch": {
    "l": 0.77294,
    "c": 0.11444,
    "h": 228.7
  },
  "luminance": 0.47486
}

Semantic roles & 50–950 ramp

primary

#5BC3EF

secondary

#ECC9BA

accent

#4707DF

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0F1417

muted

#7E8385

Preview Lab

Preview with #5BC3EF

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

Preview Lab → · Contrast checker → · Palette generator →