#4283C0#4283C0

#4283C0 is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.5% C 0.115 H 249.0°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#4283C0
RGB	rgb(66, 131, 192)
HSL	hsl(209, 50%, 51%)
HSV	hsv(209, 66%, 75%)
CMYK	cmyk(65.6%, 31.8%, 0%, 24.7%)
CIE-LAB	lab(53.16, -1.34, -37.99)
CIE-LCH	lch(53.16, 38.01, 267.98°)
OKLab	oklab(59.49% -0.0412 -0.1074)
OKLCH	oklch(59.49% 0.115 249)
XYZ	xyz(19.8740, 21.1946, 52.9025)
Luminance	0.2120 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283C0 #C07F42

analogous

#42C0BE #4283C0 #4244C0

triadic

#4283C0 #C04283 #83C042

tetradic

#4283C0 #BE42C0 #C07F42 #44C042

square

#4283C0 #BE42C0 #C07F42 #44C042

split-complementary

#4283C0 #C04244 #C0BE42

monochromatic

#224566 #316494 #4283C0 #70A1CF #9EBFDF

Accessibility & contrast

On white

4.01

#4283C0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#4283C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283C0

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283C0	#FFFFFF	#000000	##000000
##4283C0	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6886C3

Deuteranopia (green-blind)

#5779BF

Tritanopia (blue-blind)

#009199

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4283c0;
/* rgb */ color: rgb(66, 131, 192);
/* oklch */ color: oklch(59.5% 0.115 249.0);

Tailwind

colors: {
  custom: {
    50: '#83a6d3',
    500: '#4283c0',
    950: '#000000',
  },
}

SCSS

$custom: #4283c0;
$custom-light: #83a6d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4283c0",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 192
  },
  "hsl": {
    "h": 209.048,
    "s": 50,
    "l": 50.588
  },
  "oklch": {
    "l": 0.59489,
    "c": 0.11505,
    "h": 249
  },
  "luminance": 0.21197
}

Semantic roles & 50–950 ramp

primary

#4283C0

secondary

#CBAE93

accent

#924EDA

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #4283C0

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

Preview Lab → · Contrast checker → · Palette generator →