#4399BB#4399BB

#4399BB is a light, moderate cyan. Relative luminance 0.276; OKLCH L 64.4% C 0.096 H 227.2°. Best body text is #000000 at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#4399BB
RGB	rgb(67, 153, 187)
HSL	hsl(197, 47%, 50%)
HSV	hsv(197, 64%, 73%)
CMYK	cmyk(64.2%, 18.2%, 0%, 26.7%)
CIE-LAB	lab(59.49, -15.30, -25.30)
CIE-LCH	lch(59.49, 29.56, 238.84°)
OKLab	oklab(64.44% -0.0654 -0.0707)
OKLCH	oklch(64.44% 0.096 227.2)
XYZ	xyz(22.6721, 27.5613, 51.1291)
Luminance	0.2756 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4399BB #BB6543

analogous

#43BBA1 #4399BB #435DBB

triadic

#4399BB #BB4399 #99BB43

tetradic

#4399BB #A143BB #BB6543 #5DBB43

square

#4399BB #A143BB #BB6543 #5DBB43

split-complementary

#4399BB #BB435D #BBA143

monochromatic

#234F61 #33748E #4399BB #70B2CC #9DCADC

Accessibility & contrast

On white

3.22

#4399BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.51

#4399BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4399BB

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4399BB	#FFFFFF	#000000	##000000
##4399BB	1.00	3.22	6.51	6.51
#FFFFFF	3.22	1.00	21.00	21.00
#000000	6.51	21.00	1.00	1.00
##000000	6.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8796BD

Deuteranopia (green-blind)

#768ABB

Tritanopia (blue-blind)

#00A3A4

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #4399bb;
/* rgb */ color: rgb(67, 153, 187);
/* oklch */ color: oklch(64.4% 0.096 227.2);

Tailwind

colors: {
  custom: {
    50: '#84b7cf',
    500: '#4399bb',
    950: '#000000',
  },
}

SCSS

$custom: #4399bb;
$custom-light: #84b7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4399bb",
  "rgb": {
    "r": 67,
    "g": 153,
    "b": 187
  },
  "hsl": {
    "h": 197,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.64443,
    "c": 0.09627,
    "h": 227.2
  },
  "luminance": 0.27564
}

Semantic roles & 50–950 ramp

primary

#4399BB

secondary

#C8A192

accent

#7751D7

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #4399BB

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

Preview Lab → · Contrast checker → · Palette generator →