#4C66BC#4C66BC

#4C66BC is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.3% C 0.138 H 268.7°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#4C66BC
RGB	rgb(76, 102, 188)
HSL	hsl(226, 46%, 52%)
HSV	hsv(226, 60%, 74%)
CMYK	cmyk(59.6%, 45.7%, 0%, 26.3%)
CIE-LAB	lab(45.18, 16.94, -48.32)
CIE-LCH	lch(45.18, 51.20, 289.32°)
OKLab	oklab(53.35% -0.003 -0.1378)
OKLCH	oklch(53.35% 0.138 268.7)
XYZ	xyz(16.8059, 14.6687, 49.5129)
Luminance	0.1467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4C66BC #BCA24C

analogous

#4C9EBC #4C66BC #6A4CBC

triadic

#4C66BC #BC4C66 #66BC4C

tetradic

#4C66BC #BC4C9E #BCA24C #4CBC6A

square

#4C66BC #BC4C9E #BCA24C #4CBC6A

split-complementary

#4C66BC #BC6A4C #9EBC4C

monochromatic

#273667 #374D94 #4C66BC #798CCD #A5B2DD

Accessibility & contrast

On white

5.34

#4C66BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#4C66BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4C66BC

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4C66BC	#FFFFFF	#000000	##FFFFFF
##4C66BC	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E70BF

Deuteranopia (green-blind)

#2D66BA

Tritanopia (blue-blind)

#007988

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #4c66bc;
/* rgb */ color: rgb(76, 102, 188);
/* oklch */ color: oklch(53.3% 0.138 268.7);

Tailwind

colors: {
  custom: {
    50: '#8791d1',
    500: '#4c66bc',
    950: '#000000',
  },
}

SCSS

$custom: #4c66bc;
$custom-light: #8791d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4c66bc",
  "rgb": {
    "r": 76,
    "g": 102,
    "b": 188
  },
  "hsl": {
    "h": 226.071,
    "s": 45.528,
    "l": 51.765
  },
  "oklch": {
    "l": 0.5335,
    "c": 0.13787,
    "h": 268.7
  },
  "luminance": 0.1467
}

Semantic roles & 50–950 ramp

primary

#4C66BC

secondary

#CABF99

accent

#B753D5

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4C66BC

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

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