#5BB3EA#5BB3EA

#5BB3EA is a light, moderate cyan. Relative luminance 0.404; OKLCH L 73.5% C 0.116 H 238.6°. Best body text is #000000 at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#5BB3EA
RGB	rgb(91, 179, 234)
HSL	hsl(203, 77%, 64%)
HSV	hsv(203, 61%, 92%)
CMYK	cmyk(61.1%, 23.5%, 0%, 8.2%)
CIE-LAB	lab(69.75, -10.30, -35.41)
CIE-LCH	lch(69.75, 36.87, 253.79°)
OKLab	oklab(73.46% -0.0607 -0.0993)
OKLCH	oklch(73.46% 0.116 238.6)
XYZ	xyz(35.2801, 40.4014, 83.7649)
Luminance	0.4041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB3EA #EA925B

analogous

#5BEAD9 #5BB3EA #5B6BEA

triadic

#5BB3EA #EA5BB3 #B3EA5B

tetradic

#5BB3EA #D95BEA #EA925B #6BEA5B

square

#5BB3EA #D95BEA #EA925B #6BEA5B

split-complementary

#5BB3EA #EA5B6B #EAD95B

monochromatic

#1777B4 #259AE3 #5BB3EA #91CCF1 #C8E5F8

Accessibility & contrast

On white

2.31

#5BB3EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.08

#5BB3EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB3EA

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB3EA	#FFFFFF	#000000	##000000
##5BB3EA	1.00	2.31	9.08	9.08
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.08	21.00	1.00	1.00
##000000	9.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9AB3ED

Deuteranopia (green-blind)

#86A4E9

Tritanopia (blue-blind)

#00C1C6

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #5bb3ea;
/* rgb */ color: rgb(91, 179, 234);
/* oklch */ color: oklch(73.5% 0.116 238.6);

Tailwind

colors: {
  custom: {
    50: '#95c9f1',
    500: '#5bb3ea',
    950: '#000000',
  },
}

SCSS

$custom: #5bb3ea;
$custom-light: #95c9f1;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb3ea",
  "rgb": {
    "r": 91,
    "g": 179,
    "b": 234
  },
  "hsl": {
    "h": 203.077,
    "s": 77.297,
    "l": 63.725
  },
  "oklch": {
    "l": 0.73458,
    "c": 0.11638,
    "h": 238.6
  },
  "luminance": 0.40405
}

Semantic roles & 50–950 ramp

primary

#5BB3EA

secondary

#EACBB7

accent

#5B0CDA

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB3EA

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

Preview Lab → · Contrast checker → · Palette generator →