#4C81CF#4C81CF

#4C81CF is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.3% C 0.132 H 258.0°. Best body text is #000000 at 5.35:1 contrast (WCAG AA passes).

Color values

HEX	#4C81CF
RGB	rgb(76, 129, 207)
HSL	hsl(216, 58%, 55%)
HSV	hsv(216, 63%, 81%)
CMYK	cmyk(63.3%, 37.7%, 0%, 18.8%)
CIE-LAB	lab(53.75, 6.76, -45.56)
CIE-LCH	lch(53.75, 46.06, 278.44°)
OKLab	oklab(60.31% -0.0275 -0.1294)
OKLCH	oklch(60.31% 0.132 258)
XYZ	xyz(22.0892, 21.7399, 62.0515)
Luminance	0.2174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C81CF #CF9A4C

analogous

#4CC2CF #4C81CF #584CCF

triadic

#4C81CF #CF4C81 #81CF4C

tetradic

#4C81CF #CF4CC2 #CF9A4C #4CCF58

square

#4C81CF #CF4CC2 #CF9A4C #4CCF58

split-complementary

#4C81CF #CF584C #C2CF4C

monochromatic

#22477F #2F63AF #4C81CF #7CA3DC #ADC5E9

Accessibility & contrast

On white

3.93

#4C81CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.35

#4C81CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4C81CF

5.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C81CF	#FFFFFF	#000000	##000000
##4C81CF	1.00	3.93	5.35	5.35
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.35	21.00	1.00	1.00
##000000	5.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F87D2

Deuteranopia (green-blind)

#4C7BCD

Tritanopia (blue-blind)

#00939E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4c81cf;
/* rgb */ color: rgb(76, 129, 207);
/* oklch */ color: oklch(60.3% 0.132 258.0);

Tailwind

colors: {
  custom: {
    50: '#8aa5de',
    500: '#4c81cf',
    950: '#000000',
  },
}

SCSS

$custom: #4c81cf;
$custom-light: #8aa5de;
$custom-dark: #000000;

JSON

{
  "hex": "#4c81cf",
  "rgb": {
    "r": 76,
    "g": 129,
    "b": 207
  },
  "hsl": {
    "h": 215.725,
    "s": 57.709,
    "l": 55.49
  },
  "oklch": {
    "l": 0.60308,
    "c": 0.13231,
    "h": 258
  },
  "luminance": 0.21742
}

Semantic roles & 50–950 ramp

primary

#4C81CF

secondary

#D7C1A0

accent

#A347E1

background

#F9FAFD

surface

#F1F4FB

border

#CBCED4

text

#0D0F15

muted

#7E7F83

Preview Lab

Preview with #4C81CF

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

Preview Lab → · Contrast checker → · Palette generator →