#3972B5#3972B5

#3972B5 is a mid, vivid cyan. Relative luminance 0.162; OKLCH L 54.6% C 0.121 H 254.0°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3972B5
RGB	rgb(57, 114, 181)
HSL	hsl(212, 52%, 47%)
HSV	hsv(212, 69%, 71%)
CMYK	cmyk(68.5%, 37%, 0%, 29%)
CIE-LAB	lab(47.29, 3.53, -40.95)
CIE-LCH	lch(47.29, 41.10, 274.93°)
OKLab	oklab(54.61% -0.0334 -0.1164)
OKLCH	oklch(54.61% 0.121 254)
XYZ	xyz(16.0421, 16.2390, 45.9961)
Luminance	0.1624 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3972B5 #B57C39

analogous

#39B0B5 #3972B5 #3E39B5

triadic

#3972B5 #B53972 #72B539

tetradic

#3972B5 #B539B0 #B57C39 #39B53E

square

#3972B5 #B539B0 #B57C39 #39B53E

split-complementary

#3972B5 #B53E39 #B0B539

monochromatic

#1C3758 #2A5586 #3972B5 #5F91CD #8DB1DB

Accessibility & contrast

On white

4.94

#3972B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#3972B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3972B5

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3972B5	#FFFFFF	#000000	##FFFFFF
##3972B5	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5477B8

Deuteranopia (green-blind)

#426BB4

Tritanopia (blue-blind)

#00828B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3972b5;
/* rgb */ color: rgb(57, 114, 181);
/* oklch */ color: oklch(54.6% 0.121 254.0);

Tailwind

colors: {
  custom: {
    50: '#7d9acb',
    500: '#3972b5',
    950: '#000000',
  },
}

SCSS

$custom: #3972b5;
$custom-light: #7d9acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3972b5",
  "rgb": {
    "r": 57,
    "g": 114,
    "b": 181
  },
  "hsl": {
    "h": 212.419,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54607,
    "c": 0.1211,
    "h": 254
  },
  "luminance": 0.16241
}

Semantic roles & 50–950 ramp

primary

#3972B5

secondary

#C6A884

accent

#9A4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3972B5

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

Preview Lab → · Contrast checker → · Palette generator →