#5BB4E5#5BB4E5

#5BB4E5 is a light, moderate cyan. Relative luminance 0.405; OKLCH L 73.5% C 0.111 H 235.2°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#5BB4E5
RGB	rgb(91, 180, 229)
HSL	hsl(201, 73%, 63%)
HSV	hsv(201, 60%, 90%)
CMYK	cmyk(60.3%, 21.4%, 0%, 10.2%)
CIE-LAB	lab(69.84, -12.39, -32.55)
CIE-LCH	lch(69.84, 34.83, 249.16°)
OKLab	oklab(73.46% -0.0634 -0.0911)
OKLCH	oklch(73.46% 0.111 235.2)
XYZ	xyz(34.7731, 40.5204, 80.1022)
Luminance	0.4052 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB4E5 #E58C5B

analogous

#5BE5D1 #5BB4E5 #5B6FE5

triadic

#5BB4E5 #E55BB4 #B4E55B

tetradic

#5BB4E5 #D15BE5 #E58C5B #6FE55B

square

#5BB4E5 #D15BE5 #E58C5B #6FE55B

split-complementary

#5BB4E5 #E55B6F #E5D15B

monochromatic

#1B78AB #269CDD #5BB4E5 #90CCED #C5E4F6

Accessibility & contrast

On white

2.31

#5BB4E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#5BB4E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB4E5

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB4E5	#FFFFFF	#000000	##000000
##5BB4E5	1.00	2.31	9.10	9.10
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.10	21.00	1.00	1.00
##000000	9.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DB3E7

Deuteranopia (green-blind)

#8AA4E4

Tritanopia (blue-blind)

#00C1C4

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #5bb4e5;
/* rgb */ color: rgb(91, 180, 229);
/* oklch */ color: oklch(73.5% 0.111 235.2);

Tailwind

colors: {
  custom: {
    50: '#95caed',
    500: '#5bb4e5',
    950: '#000000',
  },
}

SCSS

$custom: #5bb4e5;
$custom-light: #95caed;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb4e5",
  "rgb": {
    "r": 91,
    "g": 180,
    "b": 229
  },
  "hsl": {
    "h": 201.304,
    "s": 72.632,
    "l": 62.745
  },
  "oklch": {
    "l": 0.73459,
    "c": 0.11098,
    "h": 235.2
  },
  "luminance": 0.40524
}

Semantic roles & 50–950 ramp

primary

#5BB4E5

secondary

#E7C7B5

accent

#5611D5

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB4E5

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

Preview Lab → · Contrast checker → · Palette generator →