#3972B7#3972B7

#3972B7 is a mid, vivid cyan. Relative luminance 0.163; OKLCH L 54.7% C 0.124 H 254.6°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#3972B7
RGB	rgb(57, 114, 183)
HSL	hsl(213, 53%, 47%)
HSV	hsv(213, 69%, 72%)
CMYK	cmyk(68.9%, 37.7%, 0%, 28.2%)
CIE-LAB	lab(47.39, 4.25, -41.94)
CIE-LCH	lch(47.39, 42.16, 275.79°)
OKLab	oklab(54.73% -0.0329 -0.1193)
OKLCH	oklch(54.73% 0.124 254.6)
XYZ	xyz(16.2488, 16.3217, 47.0846)
Luminance	0.1632 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3972B7 #B77E39

analogous

#39B1B7 #3972B7 #3F39B7

triadic

#3972B7 #B73972 #72B739

tetradic

#3972B7 #B739B1 #B77E39 #39B73F

square

#3972B7 #B739B1 #B77E39 #39B73F

split-complementary

#3972B7 #B73F39 #B1B739

monochromatic

#1C385A #2A5588 #3972B7 #6091CD #8EB2DC

Accessibility & contrast

On white

4.92

#3972B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#3972B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3972B7

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3972B7	#FFFFFF	#000000	##FFFFFF
##3972B7	1.00	4.92	4.26	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5377BA

Deuteranopia (green-blind)

#406BB6

Tritanopia (blue-blind)

#00828C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3972b7;
/* rgb */ color: rgb(57, 114, 183);
/* oklch */ color: oklch(54.7% 0.124 254.6);

Tailwind

colors: {
  custom: {
    50: '#7d9acd',
    500: '#3972b7',
    950: '#000000',
  },
}

SCSS

$custom: #3972b7;
$custom-light: #7d9acd;
$custom-dark: #000000;

JSON

{
  "hex": "#3972b7",
  "rgb": {
    "r": 57,
    "g": 114,
    "b": 183
  },
  "hsl": {
    "h": 212.857,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.54726,
    "c": 0.12374,
    "h": 254.6
  },
  "luminance": 0.16323
}

Semantic roles & 50–950 ramp

primary

#3972B7

secondary

#C7A985

accent

#9B4CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3972B7

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

Preview Lab → · Contrast checker → · Palette generator →