#4FB9EB#4FB9EB

#4FB9EB is a light, vivid cyan. Relative luminance 0.424; OKLCH L 74.4% C 0.120 H 232.1°. Best body text is #000000 at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#4FB9EB
RGB	rgb(79, 185, 235)
HSL	hsl(199, 80%, 62%)
HSV	hsv(199, 66%, 92%)
CMYK	cmyk(66.4%, 21.3%, 0%, 7.8%)
CIE-LAB	lab(71.11, -15.20, -33.87)
CIE-LCH	lch(71.11, 37.13, 245.83°)
OKLab	oklab(74.44% -0.0739 -0.095)
OKLCH	oklch(74.44% 0.12 232.1)
XYZ	xyz(35.5629, 42.3545, 84.8822)
Luminance	0.4236 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4FB9EB #EB814F

analogous

#4FEBCF #4FB9EB #4F6BEB

triadic

#4FB9EB #EB4FB9 #B9EB4F

tetradic

#4FB9EB #CF4FEB #EB814F #6BEB4F

square

#4FB9EB #CF4FEB #EB814F #6BEB4F

split-complementary

#4FB9EB #EB4F6B #EBCF4F

monochromatic

#147BAC #1AA3E3 #4FB9EB #86CFF1 #BDE5F7

Accessibility & contrast

On white

2.22

#4FB9EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.47

#4FB9EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4FB9EB

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4FB9EB	#FFFFFF	#000000	##000000
##4FB9EB	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)

#A0B7ED

Deuteranopia (green-blind)

#8BA7EA

Tritanopia (blue-blind)

#00C7CA

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #4fb9eb;
/* rgb */ color: rgb(79, 185, 235);
/* oklch */ color: oklch(74.4% 0.120 232.1);

Tailwind

colors: {
  custom: {
    50: '#90cef1',
    500: '#4fb9eb',
    950: '#000000',
  },
}

SCSS

$custom: #4fb9eb;
$custom-light: #90cef1;
$custom-dark: #000000;

JSON

{
  "hex": "#4fb9eb",
  "rgb": {
    "r": 79,
    "g": 185,
    "b": 235
  },
  "hsl": {
    "h": 199.231,
    "s": 79.592,
    "l": 61.569
  },
  "oklch": {
    "l": 0.74443,
    "c": 0.12036,
    "h": 232.1
  },
  "luminance": 0.42358
}

Semantic roles & 50–950 ramp

primary

#4FB9EB

secondary

#E8C0AE

accent

#4D0ADC

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #4FB9EB

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

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