#4281CC#4281CC

#4281CC is a mid, vivid cyan. Relative luminance 0.212; OKLCH L 59.7% C 0.132 H 254.2°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#4281CC
RGB	rgb(66, 129, 204)
HSL	hsl(213, 58%, 53%)
HSV	hsv(213, 68%, 80%)
CMYK	cmyk(67.6%, 36.8%, 0%, 20%)
CIE-LAB	lab(53.19, 4.02, -44.78)
CIE-LCH	lch(53.19, 44.96, 275.13°)
OKLab	oklab(59.7% -0.0359 -0.1273)
OKLCH	oklch(59.7% 0.132 254.2)
XYZ	xyz(20.9921, 21.2162, 60.1039)
Luminance	0.2122 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281CC #CC8D42

analogous

#42C6CC #4281CC #4842CC

triadic

#4281CC #CC4281 #81CC42

tetradic

#4281CC #CC42C6 #CC8D42 #42CC48

square

#4281CC #CC42C6 #CC8D42 #42CC48

split-complementary

#4281CC #CC4842 #C6CC42

monochromatic

#1F4674 #2C63A4 #4281CC #72A1D9 #A2C1E6

Accessibility & contrast

On white

4.00

#4281CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#4281CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281CC

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281CC	#FFFFFF	#000000	##000000
##4281CC	1.00	4.00	5.24	5.24
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F86CF

Deuteranopia (green-blind)

#4B79CA

Tritanopia (blue-blind)

#00929D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4281cc;
/* rgb */ color: rgb(66, 129, 204);
/* oklch */ color: oklch(59.7% 0.132 254.2);

Tailwind

colors: {
  custom: {
    50: '#85a5dc',
    500: '#4281cc',
    950: '#000000',
  },
}

SCSS

$custom: #4281cc;
$custom-light: #85a5dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4281cc",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 204
  },
  "hsl": {
    "h": 212.609,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.59704,
    "c": 0.13226,
    "h": 254.2
  },
  "luminance": 0.21218
}

Semantic roles & 50–950 ramp

primary

#4281CC

secondary

#D3B797

accent

#9B47E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4281CC

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

Preview Lab → · Contrast checker → · Palette generator →