#4283C7#4283C7

#4283C7 is a mid, vivid cyan. Relative luminance 0.215; OKLCH L 59.9% C 0.124 H 251.5°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#4283C7
RGB	rgb(66, 131, 199)
HSL	hsl(211, 54%, 52%)
HSV	hsv(211, 67%, 78%)
CMYK	cmyk(66.8%, 34.2%, 0%, 22%)
CIE-LAB	lab(53.51, 1.08, -41.43)
CIE-LCH	lch(53.51, 41.45, 271.49°)
OKLab	oklab(59.87% -0.0392 -0.1175)
OKLCH	oklch(59.87% 0.124 251.5)
XYZ	xyz(20.6681, 21.5123, 57.0848)
Luminance	0.2151 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283C7 #C78642

analogous

#42C5C7 #4283C7 #4442C7

triadic

#4283C7 #C74283 #83C742

tetradic

#4283C7 #C742C5 #C78642 #42C744

square

#4283C7 #C742C5 #C78642 #42C744

split-complementary

#4283C7 #C74442 #C5C742

monochromatic

#21466E #2F659D #4283C7 #71A2D5 #A0C1E3

Accessibility & contrast

On white

3.96

#4283C7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#4283C7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283C7

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283C7	#FFFFFF	#000000	##000000
##4283C7	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6587CA

Deuteranopia (green-blind)

#527AC6

Tritanopia (blue-blind)

#00939C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4283c7;
/* rgb */ color: rgb(66, 131, 199);
/* oklch */ color: oklch(59.9% 0.124 251.5);

Tailwind

colors: {
  custom: {
    50: '#84a6d8',
    500: '#4283c7',
    950: '#000000',
  },
}

SCSS

$custom: #4283c7;
$custom-light: #84a6d8;
$custom-dark: #000000;

JSON

{
  "hex": "#4283c7",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 199
  },
  "hsl": {
    "h": 210.677,
    "s": 54.286,
    "l": 51.961
  },
  "oklch": {
    "l": 0.59871,
    "c": 0.12385,
    "h": 251.5
  },
  "luminance": 0.21514
}

Semantic roles & 50–950 ramp

primary

#4283C7

secondary

#D0B395

accent

#964ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #4283C7

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

Preview Lab → · Contrast checker → · Palette generator →