#4F99DB#4F99DB

#4F99DB is a light, vivid cyan. Relative luminance 0.296; OKLCH L 66.4% C 0.123 H 247.7°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#4F99DB
RGB	rgb(79, 153, 219)
HSL	hsl(208, 66%, 58%)
HSV	hsv(208, 64%, 86%)
CMYK	cmyk(63.9%, 30.1%, 0%, 14.1%)
CIE-LAB	lab(61.27, -2.77, -40.42)
CIE-LCH	lch(61.27, 40.52, 266.08°)
OKLab	oklab(66.42% -0.0467 -0.1141)
OKLCH	oklch(66.42% 0.123 247.7)
XYZ	xyz(27.3971, 29.5565, 71.2652)
Luminance	0.2956 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F99DB #DB914F

analogous

#4FDBD7 #4F99DB #4F53DB

triadic

#4F99DB #DB4F99 #99DB4F

tetradic

#4F99DB #D74FDB #DB914F #53DB4F

square

#4F99DB #D74FDB #DB914F #53DB4F

split-complementary

#4F99DB #DB4F53 #DBD74F

monochromatic

#1E5B92 #287BC5 #4F99DB #82B6E5 #B5D4F0

Accessibility & contrast

On white

3.04

#4F99DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#4F99DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4F99DB

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F99DB	#FFFFFF	#000000	##000000
##4F99DB	1.00	3.04	6.91	6.91
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.91	21.00	1.00	1.00
##000000	6.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9BDE

Deuteranopia (green-blind)

#698EDA

Tritanopia (blue-blind)

#00A9B0

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #4f99db;
/* rgb */ color: rgb(79, 153, 219);
/* oklch */ color: oklch(66.4% 0.123 247.7);

Tailwind

colors: {
  custom: {
    50: '#8db6e6',
    500: '#4f99db',
    950: '#000000',
  },
}

SCSS

$custom: #4f99db;
$custom-light: #8db6e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4f99db",
  "rgb": {
    "r": 79,
    "g": 153,
    "b": 219
  },
  "hsl": {
    "h": 208.286,
    "s": 66.038,
    "l": 58.431
  },
  "oklch": {
    "l": 0.66419,
    "c": 0.12334,
    "h": 247.7
  },
  "luminance": 0.29559
}

Semantic roles & 50–950 ramp

primary

#4F99DB

secondary

#DFC1A7

accent

#8F3FE9

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #4F99DB

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

Preview Lab → · Contrast checker → · Palette generator →