#4B81D1#4B81D1

#4B81D1 is a mid, vivid blue. Relative luminance 0.218; OKLCH L 60.4% C 0.135 H 258.1°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#4B81D1
RGB	rgb(75, 129, 209)
HSL	hsl(216, 59%, 56%)
HSV	hsv(216, 64%, 82%)
CMYK	cmyk(64.1%, 38.3%, 0%, 18%)
CIE-LAB	lab(53.81, 7.27, -46.59)
CIE-LCH	lch(53.81, 47.16, 278.87°)
OKLab	oklab(60.38% -0.0279 -0.1325)
OKLCH	oklch(60.38% 0.135 258.1)
XYZ	xyz(22.2564, 21.7977, 63.3437)
Luminance	0.2180 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B81D1 #D19B4B

analogous

#4BC4D1 #4B81D1 #584BD1

triadic

#4B81D1 #D14B81 #81D14B

tetradic

#4B81D1 #D14BC4 #D19B4B #4BD158

square

#4B81D1 #D14BC4 #D19B4B #4BD158

split-complementary

#4B81D1 #D1584B #C4D14B

monochromatic

#214881 #2D63B1 #4B81D1 #7CA3DD #ACC5EA

Accessibility & contrast

On white

3.92

#4B81D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#4B81D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B81D1

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B81D1	#FFFFFF	#000000	##000000
##4B81D1	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E87D4

Deuteranopia (green-blind)

#4B7BCF

Tritanopia (blue-blind)

#00939F

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4b81d1;
/* rgb */ color: rgb(75, 129, 209);
/* oklch */ color: oklch(60.4% 0.135 258.1);

Tailwind

colors: {
  custom: {
    50: '#8aa5df',
    500: '#4b81d1',
    950: '#000000',
  },
}

SCSS

$custom: #4b81d1;
$custom-light: #8aa5df;
$custom-dark: #000000;

JSON

{
  "hex": "#4b81d1",
  "rgb": {
    "r": 75,
    "g": 129,
    "b": 209
  },
  "hsl": {
    "h": 215.821,
    "s": 59.292,
    "l": 55.686
  },
  "oklch": {
    "l": 0.60378,
    "c": 0.13536,
    "h": 258.1
  },
  "luminance": 0.218
}

Semantic roles & 50–950 ramp

primary

#4B81D1

secondary

#D8C1A0

accent

#A345E2

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #4B81D1

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

Preview Lab → · Contrast checker → · Palette generator →