#3966A5#3966A5

#3966A5 is a mid, moderate blue. Relative luminance 0.131; OKLCH L 50.9% C 0.112 H 257.1°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#3966A5
RGB	rgb(57, 102, 165)
HSL	hsl(215, 49%, 44%)
HSV	hsv(215, 65%, 65%)
CMYK	cmyk(65.5%, 38.2%, 0%, 35.3%)
CIE-LAB	lab(42.90, 5.25, -38.55)
CIE-LCH	lch(42.90, 38.90, 277.76°)
OKLab	oklab(50.9% -0.025 -0.1095)
OKLCH	oklch(50.9% 0.112 257.1)
XYZ	xyz(13.2278, 13.0879, 37.4191)
Luminance	0.1309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3966A5 #A57839

analogous

#399CA5 #3966A5 #4239A5

triadic

#3966A5 #A53966 #66A539

tetradic

#3966A5 #A5399C #A57839 #39A542

square

#3966A5 #A5399C #A57839 #39A542

split-complementary

#3966A5 #A54239 #9CA539

monochromatic

#1A2E4A #294A78 #3966A5 #5684C5 #84A5D4

Accessibility & contrast

On white

5.80

#3966A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#3966A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3966A5

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3966A5	#FFFFFF	#000000	##FFFFFF
##3966A5	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A6BA8

Deuteranopia (green-blind)

#3B61A4

Tritanopia (blue-blind)

#00747D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3966a5;
/* rgb */ color: rgb(57, 102, 165);
/* oklch */ color: oklch(50.9% 0.112 257.1);

Tailwind

colors: {
  custom: {
    50: '#7a91c0',
    500: '#3966a5',
    950: '#000000',
  },
}

SCSS

$custom: #3966a5;
$custom-light: #7a91c0;
$custom-dark: #000000;

JSON

{
  "hex": "#3966a5",
  "rgb": {
    "r": 57,
    "g": 102,
    "b": 165
  },
  "hsl": {
    "h": 215,
    "s": 48.649,
    "l": 43.529
  },
  "oklch": {
    "l": 0.50902,
    "c": 0.11236,
    "h": 257.1
  },
  "luminance": 0.13089
}

Semantic roles & 50–950 ramp

primary

#3966A5

secondary

#BEA27B

accent

#9F50D8

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3966A5

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

Preview Lab → · Contrast checker → · Palette generator →