#4B81DD#4B81DD

#4B81DD is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.1% C 0.151 H 260.4°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#4B81DD
RGB	rgb(75, 129, 221)
HSL	hsl(218, 68%, 58%)
HSV	hsv(218, 66%, 87%)
CMYK	cmyk(66.1%, 41.6%, 0%, 13.3%)
CIE-LAB	lab(54.46, 11.42, -52.32)
CIE-LCH	lch(54.46, 53.55, 282.31°)
OKLab	oklab(61.1% -0.0253 -0.1492)
OKLCH	oklch(61.1% 0.151 260.4)
XYZ	xyz(23.7984, 22.4145, 71.4648)
Luminance	0.2242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B81DD #DDA74B

analogous

#4BCADD #4B81DD #5E4BDD

triadic

#4B81DD #DD4B81 #81DD4B

tetradic

#4B81DD #DD4BCA #DDA74B #4BDD5E

square

#4B81DD #DD4BCA #DDA74B #4BDD5E

split-complementary

#4B81DD #DD5E4B #CADD4B

monochromatic

#1C4792 #2561C5 #4B81DD #7EA5E7 #B2C9F0

Accessibility & contrast

On white

3.83

#4B81DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#4B81DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B81DD

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B81DD	#FFFFFF	#000000	##000000
##4B81DD	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#568AE1

Deuteranopia (green-blind)

#3F7CDB

Tritanopia (blue-blind)

#0096A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4b81dd;
/* rgb */ color: rgb(75, 129, 221);
/* oklch */ color: oklch(61.1% 0.151 260.4);

Tailwind

colors: {
  custom: {
    50: '#8ca5e8',
    500: '#4b81dd',
    950: '#000000',
  },
}

SCSS

$custom: #4b81dd;
$custom-light: #8ca5e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4b81dd",
  "rgb": {
    "r": 75,
    "g": 129,
    "b": 221
  },
  "hsl": {
    "h": 217.808,
    "s": 68.224,
    "l": 58.039
  },
  "oklch": {
    "l": 0.61096,
    "c": 0.15138,
    "h": 260.4
  },
  "luminance": 0.22417
}

Semantic roles & 50–950 ramp

primary

#4B81DD

secondary

#DFC9A5

accent

#AB3DEB

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4B81DD

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

Preview Lab → · Contrast checker → · Palette generator →