#4399DA#4399DA

#4399DA is a light, vivid cyan. Relative luminance 0.290; OKLCH L 65.9% C 0.127 H 244.4°. Best body text is #000000 at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#4399DA
RGB	rgb(67, 153, 218)
HSL	hsl(206, 67%, 56%)
HSV	hsv(206, 69%, 85%)
CMYK	cmyk(69.3%, 29.8%, 0%, 14.5%)
CIE-LAB	lab(60.81, -5.04, -40.61)
CIE-LCH	lch(60.81, 40.93, 262.93°)
OKLab	oklab(65.93% -0.0549 -0.1148)
OKLCH	oklch(65.93% 0.127 244.4)
XYZ	xyz(26.3560, 29.0348, 70.5313)
Luminance	0.2904 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4399DA #DA8443

analogous

#43DACF #4399DA #434DDA

triadic

#4399DA #DA4399 #99DA43

tetradic

#4399DA #CF43DA #DA8443 #4DDA43

square

#4399DA #CF43DA #DA8443 #4DDA43

split-complementary

#4399DA #DA434D #DACF43

monochromatic

#1B5988 #257ABB #4399DA #76B5E4 #A9D0EE

Accessibility & contrast

On white

3.08

#4399DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.81

#4399DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4399DA

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4399DA	#FFFFFF	#000000	##000000
##4399DA	1.00	3.08	6.81	6.81
#FFFFFF	3.08	1.00	21.00	21.00
#000000	6.81	21.00	1.00	1.00
##000000	6.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C9BDD

Deuteranopia (green-blind)

#678CD9

Tritanopia (blue-blind)

#00A9B0

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #4399da;
/* rgb */ color: rgb(67, 153, 218);
/* oklch */ color: oklch(65.9% 0.127 244.4);

Tailwind

colors: {
  custom: {
    50: '#88b6e5',
    500: '#4399da',
    950: '#000000',
  },
}

SCSS

$custom: #4399da;
$custom-light: #88b6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4399da",
  "rgb": {
    "r": 67,
    "g": 153,
    "b": 218
  },
  "hsl": {
    "h": 205.828,
    "s": 67.111,
    "l": 55.882
  },
  "oklch": {
    "l": 0.65928,
    "c": 0.12728,
    "h": 244.4
  },
  "luminance": 0.29038
}

Semantic roles & 50–950 ramp

primary

#4399DA

secondary

#DCB89D

accent

#883EEA

background

#F9FBFE

surface

#F1F6FC

border

#CBD0D5

text

#0D1116

muted

#7E8084

Preview Lab

Preview with #4399DA

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

Preview Lab → · Contrast checker → · Palette generator →