#3972BB#3972BB

#3972BB is a mid, vivid cyan. Relative luminance 0.165; OKLCH L 55.0% C 0.129 H 255.7°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#3972BB
RGB	rgb(57, 114, 187)
HSL	hsl(214, 53%, 48%)
HSV	hsv(214, 70%, 73%)
CMYK	cmyk(69.5%, 39%, 0%, 26.7%)
CIE-LAB	lab(47.61, 5.70, -43.91)
CIE-LCH	lch(47.61, 44.28, 277.39°)
OKLab	oklab(54.97% -0.0319 -0.1251)
OKLCH	oklch(54.97% 0.129 255.7)
XYZ	xyz(16.6710, 16.4906, 49.3085)
Luminance	0.1649 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3972BB #BB8239

analogous

#39B3BB #3972BB #4139BB

triadic

#3972BB #BB3972 #72BB39

tetradic

#3972BB #BB39B3 #BB8239 #39BB41

square

#3972BB #BB39B3 #BB8239 #39BB41

split-complementary

#3972BB #BB4139 #B3BB39

monochromatic

#1C395D #2B558C #3972BB #6292CF #91B2DD

Accessibility & contrast

On white

4.89

#3972BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.30

#3972BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3972BB

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3972BB	#FFFFFF	#000000	##FFFFFF
##3972BB	1.00	4.89	4.30	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.30	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5178BE

Deuteranopia (green-blind)

#3D6BBA

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3972bb;
/* rgb */ color: rgb(57, 114, 187);
/* oklch */ color: oklch(55.0% 0.129 255.7);

Tailwind

colors: {
  custom: {
    50: '#7e9ad0',
    500: '#3972bb',
    950: '#000000',
  },
}

SCSS

$custom: #3972bb;
$custom-light: #7e9ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#3972bb",
  "rgb": {
    "r": 57,
    "g": 114,
    "b": 187
  },
  "hsl": {
    "h": 213.692,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.54967,
    "c": 0.12907,
    "h": 255.7
  },
  "luminance": 0.16492
}

Semantic roles & 50–950 ramp

primary

#3972BB

secondary

#C8AC87

accent

#9D4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3972BB

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

Preview Lab → · Contrast checker → · Palette generator →