#4B81DF#4B81DF

#4B81DF is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.2% C 0.154 H 260.7°. Best body text is #000000 at 5.50:1 contrast (WCAG AA passes).

Color values

HEX	#4B81DF
RGB	rgb(75, 129, 223)
HSL	hsl(218, 70%, 58%)
HSV	hsv(218, 66%, 87%)
CMYK	cmyk(66.4%, 42.2%, 0%, 12.5%)
CIE-LAB	lab(54.58, 12.11, -53.26)
CIE-LCH	lch(54.58, 54.62, 282.81°)
OKLab	oklab(61.22% -0.0249 -0.152)
OKLCH	oklch(61.22% 0.154 260.7)
XYZ	xyz(24.0665, 22.5217, 72.8765)
Luminance	0.2252 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B81DF #DFA94B

analogous

#4BCBDF #4B81DF #5F4BDF

triadic

#4B81DF #DF4B81 #81DF4B

tetradic

#4B81DF #DF4BCB #DFA94B #4BDF5F

square

#4B81DF #DF4BCB #DFA94B #4BDF5F

split-complementary

#4B81DF #DF5F4B #CBDF4B

monochromatic

#1B4795 #2460C9 #4B81DF #7FA5E8 #B3CAF1

Accessibility & contrast

On white

3.81

#4B81DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.50

#4B81DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B81DF

5.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B81DF	#FFFFFF	#000000	##000000
##4B81DF	1.00	3.81	5.50	5.50
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.50	21.00	1.00	1.00
##000000	5.50	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#558AE3

Deuteranopia (green-blind)

#3D7CDD

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4b81df;
/* rgb */ color: rgb(75, 129, 223);
/* oklch */ color: oklch(61.2% 0.154 260.7);

Tailwind

colors: {
  custom: {
    50: '#8ca5e9',
    500: '#4b81df',
    950: '#000000',
  },
}

SCSS

$custom: #4b81df;
$custom-light: #8ca5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4b81df",
  "rgb": {
    "r": 75,
    "g": 129,
    "b": 223
  },
  "hsl": {
    "h": 218.108,
    "s": 69.811,
    "l": 58.431
  },
  "oklch": {
    "l": 0.61219,
    "c": 0.15405,
    "h": 260.7
  },
  "luminance": 0.22524
}

Semantic roles & 50–950 ramp

primary

#4B81DF

secondary

#E0CBA6

accent

#AC3BED

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4B81DF

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

Preview Lab → · Contrast checker → · Palette generator →