#4F99E0#4F99E0

#4F99E0 is a light, vivid cyan. Relative luminance 0.298; OKLCH L 66.7% C 0.129 H 249.5°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX	#4F99E0
RGB	rgb(79, 153, 224)
HSL	hsl(209, 70%, 59%)
HSV	hsv(209, 65%, 88%)
CMYK	cmyk(64.7%, 31.7%, 0%, 12.2%)
CIE-LAB	lab(61.50, -1.11, -42.84)
CIE-LCH	lch(61.50, 42.85, 268.52°)
OKLab	oklab(66.68% -0.0453 -0.1212)
OKLCH	oklch(66.68% 0.129 249.5)
XYZ	xyz(28.0652, 29.8237, 74.7841)
Luminance	0.2983 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F99E0 #E0964F

analogous

#4FE0DE #4F99E0 #4F51E0

triadic

#4F99E0 #E04F99 #99E04F

tetradic

#4F99E0 #DE4FE0 #E0964F #51E04F

square

#4F99E0 #DE4FE0 #E0964F #51E04F

split-complementary

#4F99E0 #E04F51 #E0DE4F

monochromatic

#1B5C9A #247BCE #4F99E0 #83B7E9 #B7D5F2

Accessibility & contrast

On white

3.01

#4F99E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.97

#4F99E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F99E0

6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F99E0	#FFFFFF	#000000	##000000
##4F99E0	1.00	3.01	6.97	6.97
#FFFFFF	3.01	1.00	21.00	21.00
#000000	6.97	21.00	1.00	1.00
##000000	6.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A9CE3

Deuteranopia (green-blind)

#668EDF

Tritanopia (blue-blind)

#00AAB2

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #4f99e0;
/* rgb */ color: rgb(79, 153, 224);
/* oklch */ color: oklch(66.7% 0.129 249.5);

Tailwind

colors: {
  custom: {
    50: '#8eb6ea',
    500: '#4f99e0',
    950: '#000000',
  },
}

SCSS

$custom: #4f99e0;
$custom-light: #8eb6ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4f99e0",
  "rgb": {
    "r": 79,
    "g": 153,
    "b": 224
  },
  "hsl": {
    "h": 209.379,
    "s": 70.048,
    "l": 59.412
  },
  "oklch": {
    "l": 0.66678,
    "c": 0.12936,
    "h": 249.5
  },
  "luminance": 0.29827
}

Semantic roles & 50–950 ramp

primary

#4F99E0

secondary

#E2C5A9

accent

#923BED

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #4F99E0

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

Preview Lab → · Contrast checker → · Palette generator →