#5BB0E5#5BB0E5

#5BB0E5 is a light, moderate cyan. Relative luminance 0.389; OKLCH L 72.6% C 0.113 H 238.4°. Best body text is #000000 at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#5BB0E5
RGB	rgb(91, 176, 229)
HSL	hsl(203, 73%, 63%)
HSV	hsv(203, 60%, 90%)
CMYK	cmyk(60.3%, 23.1%, 0%, 10.2%)
CIE-LAB	lab(68.70, -10.23, -34.31)
CIE-LCH	lch(68.70, 35.81, 253.40°)
OKLab	oklab(72.56% -0.0592 -0.0962)
OKLCH	oklch(72.56% 0.113 238.4)
XYZ	xyz(33.9772, 38.9287, 79.8369)
Luminance	0.3893 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB0E5 #E5905B

analogous

#5BE5D5 #5BB0E5 #5B6BE5

triadic

#5BB0E5 #E55BB0 #B0E55B

tetradic

#5BB0E5 #D55BE5 #E5905B #6BE55B

square

#5BB0E5 #D55BE5 #E5905B #6BE55B

split-complementary

#5BB0E5 #E55B6B #E5D55B

monochromatic

#1B73AB #2697DD #5BB0E5 #90C9ED #C5E3F6

Accessibility & contrast

On white

2.39

#5BB0E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.79

#5BB0E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB0E5

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB0E5	#FFFFFF	#000000	##000000
##5BB0E5	1.00	2.39	8.79	8.79
#FFFFFF	2.39	1.00	21.00	21.00
#000000	8.79	21.00	1.00	1.00
##000000	8.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98AFE7

Deuteranopia (green-blind)

#85A1E4

Tritanopia (blue-blind)

#00BDC2

Achromatopsia (no color)

#A8A8A8

Design tokens & code

CSS

--color: #5bb0e5;
/* rgb */ color: rgb(91, 176, 229);
/* oklch */ color: oklch(72.6% 0.113 238.4);

Tailwind

colors: {
  custom: {
    50: '#95c7ed',
    500: '#5bb0e5',
    950: '#000000',
  },
}

SCSS

$custom: #5bb0e5;
$custom-light: #95c7ed;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb0e5",
  "rgb": {
    "r": 91,
    "g": 176,
    "b": 229
  },
  "hsl": {
    "h": 203.043,
    "s": 72.632,
    "l": 62.745
  },
  "oklch": {
    "l": 0.72555,
    "c": 0.11293,
    "h": 238.4
  },
  "luminance": 0.38932
}

Semantic roles & 50–950 ramp

primary

#5BB0E5

secondary

#E7C8B5

accent

#5C11D5

background

#F9FCFE

surface

#F2F8FD

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #5BB0E5

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

Preview Lab → · Contrast checker → · Palette generator →