#4283D7#4283D7

#4283D7 is a mid, vivid cyan. Relative luminance 0.223; OKLCH L 60.8% C 0.144 H 255.9°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4283D7
RGB	rgb(66, 131, 215)
HSL	hsl(214, 65%, 55%)
HSV	hsv(214, 69%, 84%)
CMYK	cmyk(69.3%, 39.1%, 0%, 15.7%)
CIE-LAB	lab(54.34, 6.69, -49.17)
CIE-LCH	lch(54.34, 49.62, 277.75°)
OKLab	oklab(60.79% -0.0352 -0.1401)
OKLCH	oklch(60.79% 0.144 255.9)
XYZ	xyz(22.6243, 22.2948, 67.3878)
Luminance	0.2230 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283D7 #D79642

analogous

#42CDD7 #4283D7 #4C42D7

triadic

#4283D7 #D74283 #83D742

tetradic

#4283D7 #D742CD #D79642 #42D74C

square

#4283D7 #D742CD #D79642 #42D74C

split-complementary

#4283D7 #D74C42 #CDD742

monochromatic

#1C4983 #2665B5 #4283D7 #75A4E2 #A7C5EC

Accessibility & contrast

On white

3.85

#4283D7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#4283D7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283D7

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283D7	#FFFFFF	#000000	##000000
##4283D7	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C89DA

Deuteranopia (green-blind)

#467CD5

Tritanopia (blue-blind)

#0097A2

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4283d7;
/* rgb */ color: rgb(66, 131, 215);
/* oklch */ color: oklch(60.8% 0.144 255.9);

Tailwind

colors: {
  custom: {
    50: '#87a6e4',
    500: '#4283d7',
    950: '#000000',
  },
}

SCSS

$custom: #4283d7;
$custom-light: #87a6e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4283d7",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 215
  },
  "hsl": {
    "h": 213.826,
    "s": 65.066,
    "l": 55.098
  },
  "oklch": {
    "l": 0.60793,
    "c": 0.14447,
    "h": 255.9
  },
  "luminance": 0.22297
}

Semantic roles & 50–950 ramp

primary

#4283D7

secondary

#DABE9B

accent

#9F40E8

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F15

muted

#7D7F84

Preview Lab

Preview with #4283D7

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

Preview Lab → · Contrast checker → · Palette generator →