#4283C3#4283C3

#4283C3 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.7% C 0.119 H 250.2°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#4283C3
RGB	rgb(66, 131, 195)
HSL	hsl(210, 52%, 51%)
HSV	hsv(210, 66%, 76%)
CMYK	cmyk(66.2%, 32.8%, 0%, 23.5%)
CIE-LAB	lab(53.31, -0.31, -39.47)
CIE-LCH	lch(53.31, 39.47, 269.55°)
OKLab	oklab(59.65% -0.0403 -0.1117)
OKLCH	oklch(59.65% 0.119 250.2)
XYZ	xyz(20.2097, 21.3289, 54.6710)
Luminance	0.2133 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283C3 #C38242

analogous

#42C3C2 #4283C3 #4242C3

triadic

#4283C3 #C34283 #83C342

tetradic

#4283C3 #C242C3 #C38242 #42C342

square

#4283C3 #C242C3 #C38242 #42C342

split-complementary

#4283C3 #C34242 #C3C242

monochromatic

#214669 #306498 #4283C3 #70A1D2 #9FC0E0

Accessibility & contrast

On white

3.99

#4283C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#4283C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283C3

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283C3	#FFFFFF	#000000	##000000
##4283C3	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6786C6

Deuteranopia (green-blind)

#557AC2

Tritanopia (blue-blind)

#00929A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4283c3;
/* rgb */ color: rgb(66, 131, 195);
/* oklch */ color: oklch(59.7% 0.119 250.2);

Tailwind

colors: {
  custom: {
    50: '#83a6d5',
    500: '#4283c3',
    950: '#000000',
  },
}

SCSS

$custom: #4283c3;
$custom-light: #83a6d5;
$custom-dark: #000000;

JSON

{
  "hex": "#4283c3",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 195
  },
  "hsl": {
    "h": 209.767,
    "s": 51.807,
    "l": 51.176
  },
  "oklch": {
    "l": 0.59651,
    "c": 0.1188,
    "h": 250.2
  },
  "luminance": 0.21331
}

Semantic roles & 50–950 ramp

primary

#4283C3

secondary

#CDB094

accent

#934DDB

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #4283C3

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

Preview Lab → · Contrast checker → · Palette generator →