#4281D5#4281D5

#4281D5 is a mid, vivid cyan. Relative luminance 0.217; OKLCH L 60.2% C 0.144 H 256.4°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#4281D5
RGB	rgb(66, 129, 213)
HSL	hsl(214, 64%, 55%)
HSV	hsv(214, 69%, 84%)
CMYK	cmyk(69%, 39.4%, 0%, 16.5%)
CIE-LAB	lab(53.66, 7.19, -49.11)
CIE-LCH	lch(53.66, 49.63, 278.33°)
OKLab	oklab(60.23% -0.0338 -0.14)
OKLCH	oklch(60.23% 0.144 256.4)
XYZ	xyz(22.1029, 21.6605, 65.9539)
Luminance	0.2166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281D5 #D59642

analogous

#42CAD5 #4281D5 #4D42D5

triadic

#4281D5 #D54281 #81D542

tetradic

#4281D5 #D542CA #D59642 #42D54D

square

#4281D5 #D542CA #D59642 #42D54D

split-complementary

#4281D5 #D54D42 #CAD542

monochromatic

#1C4780 #2863B2 #4281D5 #74A2E0 #A6C4EB

Accessibility & contrast

On white

3.94

#4281D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#4281D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281D5

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281D5	#FFFFFF	#000000	##000000
##4281D5	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A88D8

Deuteranopia (green-blind)

#447AD3

Tritanopia (blue-blind)

#0094A1

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4281d5;
/* rgb */ color: rgb(66, 129, 213);
/* oklch */ color: oklch(60.2% 0.144 256.4);

Tailwind

colors: {
  custom: {
    50: '#86a5e2',
    500: '#4281d5',
    950: '#000000',
  },
}

SCSS

$custom: #4281d5;
$custom-light: #86a5e2;
$custom-dark: #000000;

JSON

{
  "hex": "#4281d5",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 213
  },
  "hsl": {
    "h": 214.286,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.60234,
    "c": 0.144,
    "h": 256.4
  },
  "luminance": 0.21663
}

Semantic roles & 50–950 ramp

primary

#4281D5

secondary

#D8BE9A

accent

#A041E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4281D5

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

Preview Lab → · Contrast checker → · Palette generator →