#4BB9FF#4BB9FF

#4BB9FF is a light, vivid cyan. Relative luminance 0.434; OKLCH L 75.3% C 0.141 H 240.5°. Best body text is #000000 at 9.68:1 contrast (WCAG AA passes).

Color values

HEX	#4BB9FF
RGB	rgb(75, 185, 255)
HSL	hsl(203, 100%, 65%)
HSV	hsv(203, 71%, 100%)
CMYK	cmyk(70.6%, 27.5%, 0%, 0%)
CIE-LAB	lab(71.83, -9.30, -43.58)
CIE-LCH	lch(71.83, 44.57, 257.96°)
OKLab	oklab(75.26% -0.0696 -0.1231)
OKLCH	oklch(75.26% 0.141 240.5)
XYZ	xyz(38.2936, 43.4095, 100.9490)
Luminance	0.4341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4BB9FF #FF914B

analogous

#4BFFEB #4BB9FF #4B5FFF

triadic

#4BB9FF #FF4BB9 #B9FF4B

tetradic

#4BB9FF #EB4BFF #FF914B #5FFF4B

square

#4BB9FF #EB4BFF #FF914B #5FFF4B

split-complementary

#4BB9FF #FF4B5F #FFEB4B

monochromatic

#007FD0 #0EA1FF #4BB9FF #88D1FF #C5E9FF

Accessibility & contrast

On white

2.17

#4BB9FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.68

#4BB9FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4BB9FF

9.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4BB9FF	#FFFFFF	#000000	##000000
##4BB9FF	1.00	2.17	9.68	9.68
#FFFFFF	2.17	1.00	21.00	21.00
#000000	9.68	21.00	1.00	1.00
##000000	9.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99BAFF

Deuteranopia (green-blind)

#80A8FE

Tritanopia (blue-blind)

#00CAD1

Achromatopsia (no color)

#B0B0B0

Design tokens & code

CSS

--color: #4bb9ff;
/* rgb */ color: rgb(75, 185, 255);
/* oklch */ color: oklch(75.3% 0.141 240.5);

Tailwind

colors: {
  custom: {
    50: '#92cdff',
    500: '#4bb9ff',
    950: '#000000',
  },
}

SCSS

$custom: #4bb9ff;
$custom-light: #92cdff;
$custom-dark: #000000;

JSON

{
  "hex": "#4bb9ff",
  "rgb": {
    "r": 75,
    "g": 185,
    "b": 255
  },
  "hsl": {
    "h": 203.333,
    "s": 100,
    "l": 64.706
  },
  "oklch": {
    "l": 0.75255,
    "c": 0.14139,
    "h": 240.5
  },
  "luminance": 0.43414
}

Semantic roles & 50–950 ramp

primary

#4BB9FF

secondary

#F2CCB4

accent

#5900E6

background

#F9FCFF

surface

#F2F9FF

border

#CCD2D7

text

#0E1318

muted

#7E8286

Preview Lab

Preview with #4BB9FF

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

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