#4B81BB#4B81BB

#4B81BB is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 59.2% C 0.106 H 251.6°. Best body text is #000000 at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#4B81BB
RGB	rgb(75, 129, 187)
HSL	hsl(211, 45%, 51%)
HSV	hsv(211, 60%, 73%)
CMYK	cmyk(59.9%, 31%, 0%, 26.7%)
CIE-LAB	lab(52.71, -0.17, -35.81)
CIE-LCH	lch(52.71, 35.81, 269.72°)
OKLab	oklab(59.16% -0.0336 -0.101)
OKLCH	oklch(59.16% 0.106 251.6)
XYZ	xyz(19.7183, 20.7824, 49.9764)
Luminance	0.2078 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B81BB #BB854B

analogous

#4BB9BB #4B81BB #4D4BBB

triadic

#4B81BB #BB4B81 #81BB4B

tetradic

#4B81BB #BB4BB9 #BB854B #4BBB4D

square

#4B81BB #BB4BB9 #BB854B #4BBB4D

split-complementary

#4B81BB #BB4D4B #B9BB4B

monochromatic

#264565 #376392 #4B81BB #77A0CC #A4BFDD

Accessibility & contrast

On white

4.07

#4B81BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.16

#4B81BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4B81BB

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B81BB	#FFFFFF	#000000	##000000
##4B81BB	1.00	4.07	5.16	5.16
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.16	21.00	1.00	1.00
##000000	5.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6984BE

Deuteranopia (green-blind)

#5A79BA

Tritanopia (blue-blind)

#008E96

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4b81bb;
/* rgb */ color: rgb(75, 129, 187);
/* oklch */ color: oklch(59.2% 0.106 251.6);

Tailwind

colors: {
  custom: {
    50: '#86a5cf',
    500: '#4b81bb',
    950: '#000000',
  },
}

SCSS

$custom: #4b81bb;
$custom-light: #86a5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4b81bb",
  "rgb": {
    "r": 75,
    "g": 129,
    "b": 187
  },
  "hsl": {
    "h": 211.071,
    "s": 45.161,
    "l": 51.373
  },
  "oklch": {
    "l": 0.59158,
    "c": 0.10644,
    "h": 251.6
  },
  "luminance": 0.20784
}

Semantic roles & 50–950 ramp

primary

#4B81BB

secondary

#CAB298

accent

#9653D5

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #4B81BB

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

Preview Lab → · Contrast checker → · Palette generator →