#3972D2#3972D2

#3972D2 is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.4% C 0.160 H 260.2°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3972D2
RGB	rgb(57, 114, 210)
HSL	hsl(218, 63%, 52%)
HSV	hsv(218, 73%, 82%)
CMYK	cmyk(72.9%, 45.7%, 0%, 17.6%)
CIE-LAB	lab(48.95, 14.09, -54.96)
CIE-LCH	lch(48.95, 56.74, 284.37°)
OKLab	oklab(56.44% -0.0273 -0.1575)
OKLCH	oklch(56.44% 0.16 260.2)
XYZ	xyz(19.3333, 17.5555, 63.3299)
Luminance	0.1756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3972D2 #D29939

analogous

#39BFD2 #3972D2 #4D39D2

triadic

#3972D2 #D23972 #72D239

tetradic

#3972D2 #D239BF #D29939 #39D24D

square

#3972D2 #D239BF #D29939 #39D24D

split-complementary

#3972D2 #D24D39 #BFD239

monochromatic

#1B3D76 #2656A8 #3972D2 #6B96DD #9DB9E9

Accessibility & contrast

On white

4.65

#3972D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3972D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3972D2

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3972D2	#FFFFFF	#000000	##FFFFFF
##3972D2	1.00	4.65	4.51	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#407CD6

Deuteranopia (green-blind)

#1E6ED0

Tritanopia (blue-blind)

#008998

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3972d2;
/* rgb */ color: rgb(57, 114, 210);
/* oklch */ color: oklch(56.4% 0.160 260.2);

Tailwind

colors: {
  custom: {
    50: '#8399e0',
    500: '#3972d2',
    950: '#000000',
  },
}

SCSS

$custom: #3972d2;
$custom-light: #8399e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3972d2",
  "rgb": {
    "r": 57,
    "g": 114,
    "b": 210
  },
  "hsl": {
    "h": 217.647,
    "s": 62.963,
    "l": 52.353
  },
  "oklch": {
    "l": 0.56439,
    "c": 0.15987,
    "h": 260.2
  },
  "luminance": 0.17558
}

Semantic roles & 50–950 ramp

primary

#3972D2

secondary

#D5BC92

accent

#A942E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3972D2

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

Preview Lab → · Contrast checker → · Palette generator →