#5BB3E7#5BB3E7

#5BB3E7 is a light, moderate cyan. Relative luminance 0.402; OKLCH L 73.3% C 0.113 H 237.0°. Best body text is #000000 at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#5BB3E7
RGB	rgb(91, 179, 231)
HSL	hsl(202, 74%, 63%)
HSV	hsv(202, 61%, 91%)
CMYK	cmyk(60.6%, 22.5%, 0%, 9.4%)
CIE-LAB	lab(69.63, -11.23, -33.96)
CIE-LCH	lch(69.63, 35.77, 251.70°)
OKLab	oklab(73.32% -0.0617 -0.0951)
OKLCH	oklch(73.32% 0.113 237)
XYZ	xyz(34.8528, 40.2305, 81.5143)
Luminance	0.4023 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB3E7 #E78F5B

analogous

#5BE7D5 #5BB3E7 #5B6DE7

triadic

#5BB3E7 #E75BB3 #B3E75B

tetradic

#5BB3E7 #D55BE7 #E78F5B #6DE75B

square

#5BB3E7 #D55BE7 #E78F5B #6DE75B

split-complementary

#5BB3E7 #E75B6D #E7D55B

monochromatic

#1977AE #269ADF #5BB3E7 #90CCEF #C6E4F7

Accessibility & contrast

On white

2.32

#5BB3E7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.05

#5BB3E7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB3E7

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB3E7	#FFFFFF	#000000	##000000
##5BB3E7	1.00	2.32	9.05	9.05
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.05	21.00	1.00	1.00
##000000	9.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9BB2E9

Deuteranopia (green-blind)

#87A4E6

Tritanopia (blue-blind)

#00C0C4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #5bb3e7;
/* rgb */ color: rgb(91, 179, 231);
/* oklch */ color: oklch(73.3% 0.113 237.0);

Tailwind

colors: {
  custom: {
    50: '#95c9ee',
    500: '#5bb3e7',
    950: '#000000',
  },
}

SCSS

$custom: #5bb3e7;
$custom-light: #95c9ee;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb3e7",
  "rgb": {
    "r": 91,
    "g": 179,
    "b": 231
  },
  "hsl": {
    "h": 202.286,
    "s": 74.468,
    "l": 63.137
  },
  "oklch": {
    "l": 0.73322,
    "c": 0.11338,
    "h": 237
  },
  "luminance": 0.40234
}

Semantic roles & 50–950 ramp

primary

#5BB3E7

secondary

#E8C8B6

accent

#590FD7

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB3E7

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

Preview Lab → · Contrast checker → · Palette generator →