#4280CD#4280CD

#4280CD is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.5% C 0.135 H 255.1°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#4280CD
RGB	rgb(66, 128, 205)
HSL	hsl(213, 58%, 53%)
HSV	hsv(213, 68%, 80%)
CMYK	cmyk(67.8%, 37.6%, 0%, 19.6%)
CIE-LAB	lab(52.95, 4.98, -45.72)
CIE-LCH	lch(52.95, 45.99, 276.21°)
OKLab	oklab(59.54% -0.0347 -0.13)
OKLCH	oklch(59.54% 0.135 255.1)
XYZ	xyz(20.9814, 21.0022, 60.6939)
Luminance	0.2100 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4280CD #CD8F42

analogous

#42C6CD #4280CD #4942CD

triadic

#4280CD #CD4280 #80CD42

tetradic

#4280CD #CD42C6 #CD8F42 #42CD49

square

#4280CD #CD42C6 #CD8F42 #42CD49

split-complementary

#4280CD #CD4942 #C6CD42

monochromatic

#1F4676 #2C62A6 #4280CD #72A1DA #A3C1E7

Accessibility & contrast

On white

4.04

#4280CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#4280CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4280CD

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4280CD	#FFFFFF	#000000	##000000
##4280CD	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D86D0

Deuteranopia (green-blind)

#4978CB

Tritanopia (blue-blind)

#00929D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4280cd;
/* rgb */ color: rgb(66, 128, 205);
/* oklch */ color: oklch(59.5% 0.135 255.1);

Tailwind

colors: {
  custom: {
    50: '#85a4dc',
    500: '#4280cd',
    950: '#000000',
  },
}

SCSS

$custom: #4280cd;
$custom-light: #85a4dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4280cd",
  "rgb": {
    "r": 66,
    "g": 128,
    "b": 205
  },
  "hsl": {
    "h": 213.237,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.59539,
    "c": 0.13458,
    "h": 255.1
  },
  "luminance": 0.21004
}

Semantic roles & 50–950 ramp

primary

#4280CD

secondary

#D3B997

accent

#9C46E1

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4280CD

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

Preview Lab → · Contrast checker → · Palette generator →