#4283CD#4283CD

#4283CD is a mid, vivid cyan. Relative luminance 0.218; OKLCH L 60.2% C 0.132 H 253.4°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#4283CD
RGB	rgb(66, 131, 205)
HSL	hsl(212, 58%, 53%)
HSV	hsv(212, 68%, 80%)
CMYK	cmyk(67.8%, 36.1%, 0%, 19.6%)
CIE-LAB	lab(53.81, 3.17, -44.36)
CIE-LCH	lch(53.81, 44.47, 274.09°)
OKLab	oklab(60.21% -0.0377 -0.126)
OKLCH	oklch(60.21% 0.132 253.4)
XYZ	xyz(21.3785, 21.7964, 60.8262)
Luminance	0.2180 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283CD #CD8C42

analogous

#42C9CD #4283CD #4642CD

triadic

#4283CD #CD4283 #83CD42

tetradic

#4283CD #CD42C9 #CD8C42 #42CD46

square

#4283CD #CD42C9 #CD8C42 #42CD46

split-complementary

#4283CD #CD4642 #C9CD42

monochromatic

#1F4876 #2C65A6 #4283CD #72A3DA #A3C3E7

Accessibility & contrast

On white

3.92

#4283CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#4283CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283CD

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283CD	#FFFFFF	#000000	##000000
##4283CD	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6288D0

Deuteranopia (green-blind)

#4E7BCC

Tritanopia (blue-blind)

#00949E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4283cd;
/* rgb */ color: rgb(66, 131, 205);
/* oklch */ color: oklch(60.2% 0.132 253.4);

Tailwind

colors: {
  custom: {
    50: '#85a6dc',
    500: '#4283cd',
    950: '#000000',
  },
}

SCSS

$custom: #4283cd;
$custom-light: #85a6dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4283cd",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 205
  },
  "hsl": {
    "h": 211.942,
    "s": 58.159,
    "l": 53.137
  },
  "oklch": {
    "l": 0.60209,
    "c": 0.13151,
    "h": 253.4
  },
  "luminance": 0.21799
}

Semantic roles & 50–950 ramp

primary

#4283CD

secondary

#D3B797

accent

#9946E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4283CD

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

Preview Lab → · Contrast checker → · Palette generator →