#4B81E7#4B81E7

#4B81E7 is a mid, vivid blue. Relative luminance 0.230; OKLCH L 61.7% C 0.165 H 261.8°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#4B81E7
RGB	rgb(75, 129, 231)
HSL	hsl(219, 76%, 60%)
HSV	hsv(219, 68%, 91%)
CMYK	cmyk(67.5%, 44.2%, 0%, 9.4%)
CIE-LAB	lab(55.03, 14.90, -57.01)
CIE-LCH	lch(55.03, 58.92, 284.65°)
OKLab	oklab(61.72% -0.0235 -0.163)
OKLCH	oklch(61.72% 0.165 261.8)
XYZ	xyz(25.1706, 22.9634, 78.6917)
Luminance	0.2297 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B81E7 #E7B14B

analogous

#4BCFE7 #4B81E7 #634BE7

triadic

#4B81E7 #E74B81 #81E74B

tetradic

#4B81E7 #E74BCF #E7B14B #4BE763

square

#4B81E7 #E74BCF #E7B14B #4BE763

split-complementary

#4B81E7 #E7634B #CFE74B

monochromatic

#1646A2 #1D5ED8 #4B81E7 #81A7EE #B7CDF5

Accessibility & contrast

On white

3.75

#4B81E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#4B81E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B81E7

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B81E7	#FFFFFF	#000000	##000000
##4B81E7	1.00	3.75	5.59	5.59
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F8BEB

Deuteranopia (green-blind)

#337DE5

Tritanopia (blue-blind)

#0099A9

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4b81e7;
/* rgb */ color: rgb(75, 129, 231);
/* oklch */ color: oklch(61.7% 0.165 261.8);

Tailwind

colors: {
  custom: {
    50: '#8da5ef',
    500: '#4b81e7',
    950: '#000000',
  },
}

SCSS

$custom: #4b81e7;
$custom-light: #8da5ef;
$custom-dark: #000000;

JSON

{
  "hex": "#4b81e7",
  "rgb": {
    "r": 75,
    "g": 129,
    "b": 231
  },
  "hsl": {
    "h": 219.231,
    "s": 76.471,
    "l": 60
  },
  "oklch": {
    "l": 0.61721,
    "c": 0.1647,
    "h": 261.8
  },
  "luminance": 0.22966
}

Semantic roles & 50–950 ramp

primary

#4B81E7

secondary

#E5D0A9

accent

#B135F3

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #4B81E7

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

Preview Lab → · Contrast checker → · Palette generator →