#4390D9#4390D9

#4390D9 is a light, vivid cyan. Relative luminance 0.262; OKLCH L 63.8% C 0.134 H 249.7°. Best body text is #000000 at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#4390D9
RGB	rgb(67, 144, 217)
HSL	hsl(209, 66%, 56%)
HSV	hsv(209, 69%, 85%)
CMYK	cmyk(69.1%, 33.6%, 0%, 14.9%)
CIE-LAB	lab(58.18, -0.19, -44.21)
CIE-LCH	lch(58.18, 44.21, 269.75°)
OKLab	oklab(63.84% -0.0465 -0.1254)
OKLCH	oklch(63.84% 0.134 249.7)
XYZ	xyz(24.8077, 26.1469, 69.3716)
Luminance	0.2615 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4390D9 #D98C43

analogous

#43D9D7 #4390D9 #4345D9

triadic

#4390D9 #D94390 #90D943

tetradic

#4390D9 #D743D9 #D98C43 #45D943

square

#4390D9 #D743D9 #D98C43 #45D943

split-complementary

#4390D9 #D94345 #D9D743

monochromatic

#1B5286 #2571B9 #4390D9 #76AEE3 #A9CCEE

Accessibility & contrast

On white

3.37

#4390D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.23

#4390D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4390D9

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4390D9	#FFFFFF	#000000	##000000
##4390D9	1.00	3.37	6.23	6.23
#FFFFFF	3.37	1.00	21.00	21.00
#000000	6.23	21.00	1.00	1.00
##000000	6.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F94DC

Deuteranopia (green-blind)

#5A85D8

Tritanopia (blue-blind)

#00A1AA

Achromatopsia (no color)

#8C8C8C

Design tokens & code

CSS

--color: #4390d9;
/* rgb */ color: rgb(67, 144, 217);
/* oklch */ color: oklch(63.8% 0.134 249.7);

Tailwind

colors: {
  custom: {
    50: '#88b0e5',
    500: '#4390d9',
    950: '#000000',
  },
}

SCSS

$custom: #4390d9;
$custom-light: #88b0e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4390d9",
  "rgb": {
    "r": 67,
    "g": 144,
    "b": 217
  },
  "hsl": {
    "h": 209.2,
    "s": 66.372,
    "l": 55.686
  },
  "oklch": {
    "l": 0.63837,
    "c": 0.13373,
    "h": 249.7
  },
  "luminance": 0.2615
}

Semantic roles & 50–950 ramp

primary

#4390D9

secondary

#DBBB9D

accent

#923FE9

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #4390D9

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

Preview Lab → · Contrast checker → · Palette generator →