#4281D3#4281D3

#4281D3 is a mid, vivid cyan. Relative luminance 0.216; OKLCH L 60.1% C 0.141 H 256.0°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#4281D3
RGB	rgb(66, 129, 211)
HSL	hsl(214, 62%, 54%)
HSV	hsv(214, 69%, 83%)
CMYK	cmyk(68.7%, 38.9%, 0%, 17.3%)
CIE-LAB	lab(53.56, 6.49, -48.15)
CIE-LCH	lch(53.56, 48.59, 277.67°)
OKLab	oklab(60.11% -0.0343 -0.1372)
OKLCH	oklch(60.11% 0.141 256)
XYZ	xyz(21.8506, 21.5596, 64.6253)
Luminance	0.2156 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281D3 #D39442

analogous

#42CAD3 #4281D3 #4C42D3

triadic

#4281D3 #D34281 #81D342

tetradic

#4281D3 #D342CA #D39442 #42D34C

square

#4281D3 #D342CA #D39442 #42D34C

split-complementary

#4281D3 #D34C42 #CAD342

monochromatic

#1D477D #2963AF #4281D3 #74A2DF #A5C3EA

Accessibility & contrast

On white

3.95

#4281D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#4281D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281D3

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281D3	#FFFFFF	#000000	##000000
##4281D3	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C87D6

Deuteranopia (green-blind)

#467AD1

Tritanopia (blue-blind)

#0094A0

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4281d3;
/* rgb */ color: rgb(66, 129, 211);
/* oklch */ color: oklch(60.1% 0.141 256.0);

Tailwind

colors: {
  custom: {
    50: '#86a5e1',
    500: '#4281d3',
    950: '#000000',
  },
}

SCSS

$custom: #4281d3;
$custom-light: #86a5e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4281d3",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 211
  },
  "hsl": {
    "h": 213.931,
    "s": 62.232,
    "l": 54.314
  },
  "oklch": {
    "l": 0.60115,
    "c": 0.14138,
    "h": 256
  },
  "luminance": 0.21562
}

Semantic roles & 50–950 ramp

primary

#4281D3

secondary

#D7BC9A

accent

#9F42E5

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4281D3

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

Preview Lab → · Contrast checker → · Palette generator →