#3972B1#3972B1

#3972B1 is a mid, moderate cyan. Relative luminance 0.161; OKLCH L 54.4% C 0.116 H 252.7°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3972B1
RGB	rgb(57, 114, 177)
HSL	hsl(212, 51%, 46%)
HSV	hsv(212, 68%, 69%)
CMYK	cmyk(67.8%, 35.6%, 0%, 30.6%)
CIE-LAB	lab(47.08, 2.10, -38.96)
CIE-LCH	lch(47.08, 39.02, 273.08°)
OKLab	oklab(54.37% -0.0344 -0.1106)
OKLCH	oklch(54.37% 0.116 252.7)
XYZ	xyz(15.6375, 16.0772, 43.8655)
Luminance	0.1608 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3972B1 #B17839

analogous

#39AEB1 #3972B1 #3C39B1

triadic

#3972B1 #B13972 #72B139

tetradic

#3972B1 #B139AE #B17839 #39B13C

square

#3972B1 #B139AE #B17839 #39B13C

split-complementary

#3972B1 #B13C39 #AEB139

monochromatic

#1B3654 #2A5483 #3972B1 #5D91CB #8BB0DA

Accessibility & contrast

On white

4.98

#3972B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#3972B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3972B1

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3972B1	#FFFFFF	#000000	##FFFFFF
##3972B1	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5676B4

Deuteranopia (green-blind)

#456AB0

Tritanopia (blue-blind)

#008189

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3972b1;
/* rgb */ color: rgb(57, 114, 177);
/* oklch */ color: oklch(54.4% 0.116 252.7);

Tailwind

colors: {
  custom: {
    50: '#7c9ac8',
    500: '#3972b1',
    950: '#000000',
  },
}

SCSS

$custom: #3972b1;
$custom-light: #7c9ac8;
$custom-dark: #000000;

JSON

{
  "hex": "#3972b1",
  "rgb": {
    "r": 57,
    "g": 114,
    "b": 177
  },
  "hsl": {
    "h": 211.5,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.54374,
    "c": 0.11582,
    "h": 252.7
  },
  "luminance": 0.16079
}

Semantic roles & 50–950 ramp

primary

#3972B1

secondary

#C4A582

accent

#974DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3972B1

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

Preview Lab → · Contrast checker → · Palette generator →