#3C66AF#3C66AF

#3C66AF is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.7% C 0.125 H 260.7°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#3C66AF
RGB	rgb(60, 102, 175)
HSL	hsl(218, 49%, 46%)
HSV	hsv(218, 66%, 69%)
CMYK	cmyk(65.7%, 41.7%, 0%, 31.4%)
CIE-LAB	lab(43.59, 9.38, -43.32)
CIE-LCH	lch(43.59, 44.32, 282.22°)
OKLab	oklab(51.66% -0.0202 -0.1235)
OKLCH	oklch(51.66% 0.125 260.7)
XYZ	xyz(14.3500, 13.5572, 42.4097)
Luminance	0.1356 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C66AF #AF853C

analogous

#3C9FAF #3C66AF #4B3CAF

triadic

#3C66AF #AF3C66 #66AF3C

tetradic

#3C66AF #AF3C9F #AF853C #3CAF4B

square

#3C66AF #AF3C9F #AF853C #3CAF4B

split-complementary

#3C66AF #AF4B3C #9FAF3C

monochromatic

#1D3154 #2C4B81 #3C66AF #6086C8 #8DA9D8

Accessibility & contrast

On white

5.66

#3C66AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#3C66AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3C66AF

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C66AF	#FFFFFF	#000000	##FFFFFF
##3C66AF	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#456DB2

Deuteranopia (green-blind)

#3362AD

Tritanopia (blue-blind)

#007782

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3c66af;
/* rgb */ color: rgb(60, 102, 175);
/* oklch */ color: oklch(51.7% 0.125 260.7);

Tailwind

colors: {
  custom: {
    50: '#7d91c7',
    500: '#3c66af',
    950: '#000000',
  },
}

SCSS

$custom: #3c66af;
$custom-light: #7d91c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3c66af",
  "rgb": {
    "r": 60,
    "g": 102,
    "b": 175
  },
  "hsl": {
    "h": 218.087,
    "s": 48.936,
    "l": 46.078
  },
  "oklch": {
    "l": 0.51661,
    "c": 0.12511,
    "h": 260.7
  },
  "luminance": 0.13559
}

Semantic roles & 50–950 ramp

primary

#3C66AF

secondary

#C3AC84

accent

#A64FD8

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3C66AF

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

Preview Lab → · Contrast checker → · Palette generator →