#4280D3#4280D3

#4280D3 is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.9% C 0.142 H 256.5°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#4280D3
RGB	rgb(66, 128, 211)
HSL	hsl(214, 62%, 54%)
HSV	hsv(214, 69%, 83%)
CMYK	cmyk(68.7%, 39.3%, 0%, 17.3%)
CIE-LAB	lab(53.27, 7.09, -48.60)
CIE-LCH	lch(53.27, 49.12, 278.30°)
OKLab	oklab(59.89% -0.0333 -0.1385)
OKLCH	oklch(59.89% 0.142 256.5)
XYZ	xyz(21.7195, 21.2975, 64.5816)
Luminance	0.2130 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4280D3 #D39542

analogous

#42C9D3 #4280D3 #4D42D3

triadic

#4280D3 #D34280 #80D342

tetradic

#4280D3 #D342C9 #D39542 #42D34D

square

#4280D3 #D342C9 #D39542 #42D34D

split-complementary

#4280D3 #D34D42 #C9D342

monochromatic

#1D467D #2962AF #4280D3 #74A1DF #A5C3EA

Accessibility & contrast

On white

3.99

#4280D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#4280D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4280D3

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4280D3	#FFFFFF	#000000	##000000
##4280D3	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A87D6

Deuteranopia (green-blind)

#4479D1

Tritanopia (blue-blind)

#00939F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4280d3;
/* rgb */ color: rgb(66, 128, 211);
/* oklch */ color: oklch(59.9% 0.142 256.5);

Tailwind

colors: {
  custom: {
    50: '#86a4e1',
    500: '#4280d3',
    950: '#000000',
  },
}

SCSS

$custom: #4280d3;
$custom-light: #86a4e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4280d3",
  "rgb": {
    "r": 66,
    "g": 128,
    "b": 211
  },
  "hsl": {
    "h": 214.345,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.59894,
    "c": 0.14245,
    "h": 256.5
  },
  "luminance": 0.213
}

Semantic roles & 50–950 ramp

primary

#4280D3

secondary

#D7BD9A

accent

#A042E5

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4280D3

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

Preview Lab → · Contrast checker → · Palette generator →