#3973AB#3973AB

#3973AB is a mid, moderate cyan. Relative luminance 0.161; OKLCH L 54.3% C 0.107 H 249.7°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3973AB
RGB	rgb(57, 115, 171)
HSL	hsl(209, 50%, 45%)
HSV	hsv(209, 67%, 67%)
CMYK	cmyk(66.7%, 32.7%, 0%, 32.9%)
CIE-LAB	lab(47.07, -0.64, -35.48)
CIE-LCH	lch(47.07, 35.49, 268.96°)
OKLab	oklab(54.27% -0.0371 -0.1004)
OKLCH	oklch(54.27% 0.107 249.7)
XYZ	xyz(15.1660, 16.0701, 40.8228)
Luminance	0.1607 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3973AB #AB7139

analogous

#39ABAA #3973AB #393AAB

triadic

#3973AB #AB3973 #73AB39

tetradic

#3973AB #AA39AB #AB7139 #3AAB39

square

#3973AB #AA39AB #AB7139 #3AAB39

split-complementary

#3973AB #AB393A #ABAA39

monochromatic

#1A354F #2A547D #3973AB #5992C8 #87B0D7

Accessibility & contrast

On white

4.98

#3973AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.21

#3973AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3973AB

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3973AB	#FFFFFF	#000000	##FFFFFF
##3973AB	1.00	4.98	4.21	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.21	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A76AD

Deuteranopia (green-blind)

#4B6BAA

Tritanopia (blue-blind)

#008087

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3973ab;
/* rgb */ color: rgb(57, 115, 171);
/* oklch */ color: oklch(54.3% 0.107 249.7);

Tailwind

colors: {
  custom: {
    50: '#7b9bc4',
    500: '#3973ab',
    950: '#000000',
  },
}

SCSS

$custom: #3973ab;
$custom-light: #7b9bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3973ab",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 171
  },
  "hsl": {
    "h": 209.474,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.54266,
    "c": 0.10706,
    "h": 249.7
  },
  "luminance": 0.16072
}

Semantic roles & 50–950 ramp

primary

#3973AB

secondary

#C19F7F

accent

#934EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3973AB

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

Preview Lab → · Contrast checker → · Palette generator →