#4BB9EE#4BB9EE

#4BB9EE is a light, vivid cyan. Relative luminance 0.424; OKLCH L 74.5% C 0.125 H 233.0°. Best body text is #000000 at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#4BB9EE
RGB	rgb(75, 185, 238)
HSL	hsl(200, 83%, 61%)
HSV	hsv(200, 68%, 93%)
CMYK	cmyk(68.5%, 22.3%, 0%, 6.7%)
CIE-LAB	lab(71.12, -14.84, -35.50)
CIE-LCH	lch(71.12, 38.48, 247.31°)
OKLab	oklab(74.46% -0.0751 -0.0997)
OKLCH	oklch(74.46% 0.125 233)
XYZ	xyz(35.6771, 42.3629, 87.1689)
Luminance	0.4237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4BB9EE #EE804B

analogous

#4BEED1 #4BB9EE #4B68EE

triadic

#4BB9EE #EE4BB9 #B9EE4B

tetradic

#4BB9EE #D14BEE #EE804B #68EE4B

square

#4BB9EE #D14BEE #EE804B #68EE4B

split-complementary

#4BB9EE #EE4B68 #EED14B

monochromatic

#107BAE #16A2E6 #4BB9EE #83CFF3 #BBE4F9

Accessibility & contrast

On white

2.22

#4BB9EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.47

#4BB9EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4BB9EE

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4BB9EE	#FFFFFF	#000000	##000000
##4BB9EE	1.00	2.22	9.47	9.47
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.47	21.00	1.00	1.00
##000000	9.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9FB7F1

Deuteranopia (green-blind)

#89A7ED

Tritanopia (blue-blind)

#00C7CB

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #4bb9ee;
/* rgb */ color: rgb(75, 185, 238);
/* oklch */ color: oklch(74.5% 0.125 233.0);

Tailwind

colors: {
  custom: {
    50: '#8fcef3',
    500: '#4bb9ee',
    950: '#000000',
  },
}

SCSS

$custom: #4bb9ee;
$custom-light: #8fcef3;
$custom-dark: #000000;

JSON

{
  "hex": "#4bb9ee",
  "rgb": {
    "r": 75,
    "g": 185,
    "b": 238
  },
  "hsl": {
    "h": 199.509,
    "s": 82.741,
    "l": 61.373
  },
  "oklch": {
    "l": 0.74455,
    "c": 0.12482,
    "h": 233
  },
  "luminance": 0.42367
}

Semantic roles & 50–950 ramp

primary

#4BB9EE

secondary

#E9C0AC

accent

#4D06DF

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1317

muted

#7E8285

Preview Lab

Preview with #4BB9EE

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

Preview Lab → · Contrast checker → · Palette generator →