#4281E2#4281E2

#4281E2 is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.0% C 0.161 H 258.9°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#4281E2
RGB	rgb(66, 129, 226)
HSL	hsl(216, 73%, 57%)
HSV	hsv(216, 71%, 89%)
CMYK	cmyk(70.8%, 42.9%, 0%, 11.4%)
CIE-LAB	lab(54.39, 11.82, -55.26)
CIE-LCH	lch(54.39, 56.51, 282.07°)
OKLab	oklab(61.04% -0.0311 -0.158)
OKLCH	oklch(61.04% 0.161 258.9)
XYZ	xyz(23.8195, 22.3472, 74.9949)
Luminance	0.2235 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4281E2 #E2A342

analogous

#42D1E2 #4281E2 #5342E2

triadic

#4281E2 #E24281 #81E242

tetradic

#4281E2 #E242D1 #E2A342 #42E253

square

#4281E2 #E242D1 #E2A342 #42E253

split-complementary

#4281E2 #E25342 #D1E242

monochromatic

#174893 #1F61C8 #4281E2 #77A4EA #ACC8F2

Accessibility & contrast

On white

3.84

#4281E2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#4281E2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4281E2

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4281E2	#FFFFFF	#000000	##000000
##4281E2	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#528AE6

Deuteranopia (green-blind)

#357BE0

Tritanopia (blue-blind)

#0098A6

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4281e2;
/* rgb */ color: rgb(66, 129, 226);
/* oklch */ color: oklch(61.0% 0.161 258.9);

Tailwind

colors: {
  custom: {
    50: '#89a5ec',
    500: '#4281e2',
    950: '#000000',
  },
}

SCSS

$custom: #4281e2;
$custom-light: #89a5ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4281e2",
  "rgb": {
    "r": 66,
    "g": 129,
    "b": 226
  },
  "hsl": {
    "h": 216.375,
    "s": 73.394,
    "l": 57.255
  },
  "oklch": {
    "l": 0.61035,
    "c": 0.16106,
    "h": 258.9
  },
  "luminance": 0.2235
}

Semantic roles & 50–950 ramp

primary

#4281E2

secondary

#E0C79F

accent

#A738F0

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4281E2

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

Preview Lab → · Contrast checker → · Palette generator →