#4399B0#4399B0

#4399B0 is a light, moderate cyan. Relative luminance 0.271; OKLCH L 64.0% C 0.089 H 218.2°. Best body text is #000000 at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#4399B0
RGB	rgb(67, 153, 176)
HSL	hsl(193, 45%, 48%)
HSV	hsv(193, 62%, 69%)
CMYK	cmyk(61.9%, 13.1%, 0%, 31%)
CIE-LAB	lab(59.07, -18.76, -19.72)
CIE-LCH	lch(59.07, 27.21, 226.43°)
OKLab	oklab(63.97% -0.0696 -0.0548)
OKLCH	oklch(63.97% 0.089 218.2)
XYZ	xyz(21.5393, 27.1081, 45.1631)
Luminance	0.2711 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4399B0 #B05A43

analogous

#43B091 #4399B0 #4362B0

triadic

#4399B0 #B04399 #99B043

tetradic

#4399B0 #9143B0 #B05A43 #62B043

square

#4399B0 #9143B0 #B05A43 #62B043

split-complementary

#4399B0 #B04362 #B09143

monochromatic

#214C57 #327284 #4399B0 #6AB3C6 #96C9D7

Accessibility & contrast

On white

3.27

#4399B0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.42

#4399B0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4399B0

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4399B0	#FFFFFF	#000000	##000000
##4399B0	1.00	3.27	6.42	6.42
#FFFFFF	3.27	1.00	21.00	21.00
#000000	6.42	21.00	1.00	1.00
##000000	6.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A95B1

Deuteranopia (green-blind)

#7A89B0

Tritanopia (blue-blind)

#00A1A0

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #4399b0;
/* rgb */ color: rgb(67, 153, 176);
/* oklch */ color: oklch(64.0% 0.089 218.2);

Tailwind

colors: {
  custom: {
    50: '#82b7c7',
    500: '#4399b0',
    950: '#000000',
  },
}

SCSS

$custom: #4399b0;
$custom-light: #82b7c7;
$custom-dark: #000000;

JSON

{
  "hex": "#4399b0",
  "rgb": {
    "r": 67,
    "g": 153,
    "b": 176
  },
  "hsl": {
    "h": 192.661,
    "s": 44.856,
    "l": 47.647
  },
  "oklch": {
    "l": 0.63972,
    "c": 0.08862,
    "h": 218.2
  },
  "luminance": 0.2711
}

Semantic roles & 50–950 ramp

primary

#4399B0

secondary

#C3988C

accent

#6F53D5

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #4399B0

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

Preview Lab → · Contrast checker → · Palette generator →