#3972C3#3972C3

#3972C3 is a mid, vivid blue. Relative luminance 0.168; OKLCH L 55.5% C 0.140 H 257.6°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3972C3
RGB	rgb(57, 114, 195)
HSL	hsl(215, 55%, 49%)
HSV	hsv(215, 71%, 76%)
CMYK	cmyk(70.8%, 41.5%, 0%, 23.5%)
CIE-LAB	lab(48.06, 8.60, -47.81)
CIE-LCH	lch(48.06, 48.57, 280.20°)
OKLab	oklab(55.46% -0.0301 -0.1365)
OKLCH	oklch(55.46% 0.14 257.6)
XYZ	xyz(17.5514, 16.8427, 53.9452)
Luminance	0.1684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3972C3 #C38A39

analogous

#39B7C3 #3972C3 #4539C3

triadic

#3972C3 #C33972 #72C339

tetradic

#3972C3 #C339B7 #C38A39 #39C345

square

#3972C3 #C339B7 #C38A39 #39C345

split-complementary

#3972C3 #C34539 #B7C339

monochromatic

#1D3B64 #2B5694 #3972C3 #6793D2 #96B5E0

Accessibility & contrast

On white

4.81

#3972C3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3972C3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3972C3

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3972C3	#FFFFFF	#000000	##FFFFFF
##3972C3	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C79C6

Deuteranopia (green-blind)

#356CC1

Tritanopia (blue-blind)

#008591

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3972c3;
/* rgb */ color: rgb(57, 114, 195);
/* oklch */ color: oklch(55.5% 0.140 257.6);

Tailwind

colors: {
  custom: {
    50: '#809ad5',
    500: '#3972c3',
    950: '#000000',
  },
}

SCSS

$custom: #3972c3;
$custom-light: #809ad5;
$custom-dark: #000000;

JSON

{
  "hex": "#3972c3",
  "rgb": {
    "r": 57,
    "g": 114,
    "b": 195
  },
  "hsl": {
    "h": 215.217,
    "s": 54.762,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55462,
    "c": 0.13978,
    "h": 257.6
  },
  "luminance": 0.16845
}

Semantic roles & 50–950 ramp

primary

#3972C3

secondary

#CCB18C

accent

#A14ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3972C3

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

Preview Lab → · Contrast checker → · Palette generator →