#4B81E9#4B81E9

#4B81E9 is a mid, vivid blue. Relative luminance 0.231; OKLCH L 61.8% C 0.167 H 262.0°. Best body text is #000000 at 5.62:1 contrast (WCAG AA passes).

Color values

HEX	#4B81E9
RGB	rgb(75, 129, 233)
HSL	hsl(219, 78%, 60%)
HSV	hsv(219, 68%, 91%)
CMYK	cmyk(67.8%, 44.6%, 0%, 8.6%)
CIE-LAB	lab(55.15, 15.60, -57.94)
CIE-LCH	lch(55.15, 60.00, 285.07°)
OKLab	oklab(61.85% -0.0231 -0.1657)
OKLCH	oklch(61.85% 0.167 262)
XYZ	xyz(25.4547, 23.0770, 80.1878)
Luminance	0.2308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B81E9 #E9B34B

analogous

#4BD0E9 #4B81E9 #644BE9

triadic

#4B81E9 #E94B81 #81E94B

tetradic

#4B81E9 #E94BD0 #E9B34B #4BE964

square

#4B81E9 #E94BD0 #E9B34B #4BE964

split-complementary

#4B81E9 #E9644B #D0E94B

monochromatic

#1446A5 #1B5DDC #4B81E9 #82A7F0 #B8CDF6

Accessibility & contrast

On white

3.74

#4B81E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.62

#4B81E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B81E9

5.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B81E9	#FFFFFF	#000000	##000000
##4B81E9	1.00	3.74	5.62	5.62
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.62	21.00	1.00	1.00
##000000	5.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D8CED

Deuteranopia (green-blind)

#307DE7

Tritanopia (blue-blind)

#0099AA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4b81e9;
/* rgb */ color: rgb(75, 129, 233);
/* oklch */ color: oklch(61.8% 0.167 262.0);

Tailwind

colors: {
  custom: {
    50: '#8ea5f1',
    500: '#4b81e9',
    950: '#000000',
  },
}

SCSS

$custom: #4b81e9;
$custom-light: #8ea5f1;
$custom-dark: #000000;

JSON

{
  "hex": "#4b81e9",
  "rgb": {
    "r": 75,
    "g": 129,
    "b": 233
  },
  "hsl": {
    "h": 219.494,
    "s": 78.218,
    "l": 60.392
  },
  "oklch": {
    "l": 0.61849,
    "c": 0.16736,
    "h": 262
  },
  "luminance": 0.2308
}

Semantic roles & 50–950 ramp

primary

#4B81E9

secondary

#E6D1AA

accent

#940BDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #4B81E9

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

Preview Lab → · Contrast checker → · Palette generator →