#4FB9E9#4FB9E9

#4FB9E9 is a light, moderate cyan. Relative luminance 0.422; OKLCH L 74.4% C 0.119 H 231.0°. Best body text is #000000 at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#4FB9E9
RGB	rgb(79, 185, 233)
HSL	hsl(199, 78%, 61%)
HSV	hsv(199, 66%, 91%)
CMYK	cmyk(66.1%, 20.6%, 0%, 8.6%)
CIE-LAB	lab(71.04, -15.83, -32.91)
CIE-LCH	lch(71.04, 36.52, 244.31°)
OKLab	oklab(74.35% -0.0746 -0.0922)
OKLCH	oklch(74.35% 0.119 231)
XYZ	xyz(35.2756, 42.2396, 83.3690)
Luminance	0.4224 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4FB9E9 #E97F4F

analogous

#4FE9CC #4FB9E9 #4F6CE9

triadic

#4FB9E9 #E94FB9 #B9E94F

tetradic

#4FB9E9 #CC4FE9 #E97F4F #6CE94F

square

#4FB9E9 #CC4FE9 #E97F4F #6CE94F

split-complementary

#4FB9E9 #E94F6C #E9CC4F

monochromatic

#157BA9 #1CA2DF #4FB9E9 #85CFF0 #BCE4F7

Accessibility & contrast

On white

2.22

#4FB9E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.45

#4FB9E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #4FB9E9

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4FB9E9	#FFFFFF	#000000	##000000
##4FB9E9	1.00	2.22	9.45	9.45
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.45	21.00	1.00	1.00
##000000	9.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B7EB

Deuteranopia (green-blind)

#8CA7E8

Tritanopia (blue-blind)

#00C6C9

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #4fb9e9;
/* rgb */ color: rgb(79, 185, 233);
/* oklch */ color: oklch(74.4% 0.119 231.0);

Tailwind

colors: {
  custom: {
    50: '#90cef0',
    500: '#4fb9e9',
    950: '#000000',
  },
}

SCSS

$custom: #4fb9e9;
$custom-light: #90cef0;
$custom-dark: #000000;

JSON

{
  "hex": "#4fb9e9",
  "rgb": {
    "r": 79,
    "g": 185,
    "b": 233
  },
  "hsl": {
    "h": 198.701,
    "s": 77.778,
    "l": 61.176
  },
  "oklch": {
    "l": 0.74354,
    "c": 0.11862,
    "h": 231
  },
  "luminance": 0.42243
}

Semantic roles & 50–950 ramp

primary

#4FB9E9

secondary

#E7BFAD

accent

#4C0BDA

background

#F9FCFE

surface

#F2F9FD

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #4FB9E9

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

Preview Lab → · Contrast checker → · Palette generator →