#3972B3#3972B3

#3972B3 is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.5% C 0.118 H 253.4°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#3972B3
RGB	rgb(57, 114, 179)
HSL	hsl(212, 52%, 46%)
HSV	hsv(212, 68%, 70%)
CMYK	cmyk(68.2%, 36.3%, 0%, 29.8%)
CIE-LAB	lab(47.18, 2.82, -39.96)
CIE-LCH	lch(47.18, 40.06, 274.03°)
OKLab	oklab(54.49% -0.0339 -0.1135)
OKLCH	oklch(54.49% 0.118 253.4)
XYZ	xyz(15.8384, 16.1575, 44.9231)
Luminance	0.1616 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3972B3 #B37A39

analogous

#39AFB3 #3972B3 #3D39B3

triadic

#3972B3 #B33972 #72B339

tetradic

#3972B3 #B339AF #B37A39 #39B33D

square

#3972B3 #B339AF #B37A39 #39B33D

split-complementary

#3972B3 #B33D39 #AFB339

monochromatic

#1B3756 #2A5485 #3972B3 #5E91CC #8CB1DA

Accessibility & contrast

On white

4.96

#3972B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#3972B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3972B3

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3972B3	#FFFFFF	#000000	##FFFFFF
##3972B3	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5576B6

Deuteranopia (green-blind)

#446BB2

Tritanopia (blue-blind)

#00818A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3972b3;
/* rgb */ color: rgb(57, 114, 179);
/* oklch */ color: oklch(54.5% 0.118 253.4);

Tailwind

colors: {
  custom: {
    50: '#7d9aca',
    500: '#3972b3',
    950: '#000000',
  },
}

SCSS

$custom: #3972b3;
$custom-light: #7d9aca;
$custom-dark: #000000;

JSON

{
  "hex": "#3972b3",
  "rgb": {
    "r": 57,
    "g": 114,
    "b": 179
  },
  "hsl": {
    "h": 211.967,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.5449,
    "c": 0.11845,
    "h": 253.4
  },
  "luminance": 0.16159
}

Semantic roles & 50–950 ramp

primary

#3972B3

secondary

#C5A683

accent

#994DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3972B3

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

Preview Lab → · Contrast checker → · Palette generator →