#4399BF#4399BF

#4399BF is a light, moderate cyan. Relative luminance 0.277; OKLCH L 64.6% C 0.100 H 230.1°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#4399BF
RGB	rgb(67, 153, 191)
HSL	hsl(198, 49%, 51%)
HSV	hsv(198, 65%, 75%)
CMYK	cmyk(64.9%, 19.9%, 0%, 25.1%)
CIE-LAB	lab(59.65, -14.01, -27.31)
CIE-LCH	lch(59.65, 30.69, 242.83°)
OKLab	oklab(64.62% -0.0639 -0.0764)
OKLCH	oklch(64.62% 0.1 230.1)
XYZ	xyz(23.1062, 27.7349, 53.4158)
Luminance	0.2774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4399BF #BF6943

analogous

#43BFA7 #4399BF #435BBF

triadic

#4399BF #BF4399 #99BF43

tetradic

#4399BF #A743BF #BF6943 #5BBF43

square

#4399BF #A743BF #BF6943 #5BBF43

split-complementary

#4399BF #BF435B #BFA743

monochromatic

#225165 #327593 #4399BF #71B2CF #9ECBDE

Accessibility & contrast

On white

3.21

#4399BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#4399BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4399BF

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4399BF	#FFFFFF	#000000	##000000
##4399BF	1.00	3.21	6.55	6.55
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.55	21.00	1.00	1.00
##000000	6.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8697C1

Deuteranopia (green-blind)

#748ABE

Tritanopia (blue-blind)

#00A4A6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #4399bf;
/* rgb */ color: rgb(67, 153, 191);
/* oklch */ color: oklch(64.6% 0.100 230.1);

Tailwind

colors: {
  custom: {
    50: '#84b7d2',
    500: '#4399bf',
    950: '#000000',
  },
}

SCSS

$custom: #4399bf;
$custom-light: #84b7d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4399bf",
  "rgb": {
    "r": 67,
    "g": 153,
    "b": 191
  },
  "hsl": {
    "h": 198.387,
    "s": 49.206,
    "l": 50.588
  },
  "oklch": {
    "l": 0.64622,
    "c": 0.09961,
    "h": 230.1
  },
  "luminance": 0.27737
}

Semantic roles & 50–950 ramp

primary

#4399BF

secondary

#CAA493

accent

#794FD9

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1114

muted

#7D8082

Preview Lab

Preview with #4399BF

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

Preview Lab → · Contrast checker → · Palette generator →