#4283DC#4283DC

#4283DC is a mid, vivid cyan. Relative luminance 0.226; OKLCH L 61.1% C 0.151 H 256.9°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#4283DC
RGB	rgb(66, 131, 220)
HSL	hsl(215, 69%, 56%)
HSV	hsv(215, 70%, 86%)
CMYK	cmyk(70%, 40.5%, 0%, 13.7%)
CIE-LAB	lab(54.61, 8.46, -51.54)
CIE-LCH	lch(54.61, 52.23, 279.32°)
OKLab	oklab(61.1% -0.0341 -0.1471)
OKLCH	oklch(61.1% 0.151 256.9)
XYZ	xyz(23.2766, 22.5557, 70.8232)
Luminance	0.2256 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283DC #DC9B42

analogous

#42D0DC #4283DC #4E42DC

triadic

#4283DC #DC4283 #83DC42

tetradic

#4283DC #DC42D0 #DC9B42 #42DC4E

square

#4283DC #DC42D0 #DC9B42 #42DC4E

split-complementary

#4283DC #DC4E42 #D0DC42

monochromatic

#1A498A #2364BE #4283DC #76A5E6 #A9C7EF

Accessibility & contrast

On white

3.81

#4283DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#4283DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283DC

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283DC	#FFFFFF	#000000	##000000
##4283DC	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#598AE0

Deuteranopia (green-blind)

#417CDA

Tritanopia (blue-blind)

#0098A5

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4283dc;
/* rgb */ color: rgb(66, 131, 220);
/* oklch */ color: oklch(61.1% 0.151 256.9);

Tailwind

colors: {
  custom: {
    50: '#88a6e7',
    500: '#4283dc',
    950: '#000000',
  },
}

SCSS

$custom: #4283dc;
$custom-light: #88a6e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4283dc",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 220
  },
  "hsl": {
    "h": 214.675,
    "s": 68.75,
    "l": 56.078
  },
  "oklch": {
    "l": 0.61095,
    "c": 0.15099,
    "h": 256.9
  },
  "luminance": 0.22558
}

Semantic roles & 50–950 ramp

primary

#4283DC

secondary

#DDC29D

accent

#A23CEC

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4283DC

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

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