#3973BD#3973BD

#3973BD is a mid, vivid cyan. Relative luminance 0.168; OKLCH L 55.3% C 0.131 H 255.6°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#3973BD
RGB	rgb(57, 115, 189)
HSL	hsl(214, 54%, 48%)
HSV	hsv(214, 70%, 74%)
CMYK	cmyk(69.8%, 39.2%, 0%, 25.9%)
CIE-LAB	lab(48.01, 5.80, -44.43)
CIE-LCH	lch(48.01, 44.81, 277.44°)
OKLab	oklab(55.31% -0.0324 -0.1266)
OKLCH	oklch(55.31% 0.131 255.6)
XYZ	xyz(17.0000, 16.8037, 50.4817)
Luminance	0.1681 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3973BD #BD8339

analogous

#39B5BD #3973BD #4139BD

triadic

#3973BD #BD3973 #73BD39

tetradic

#3973BD #BD39B5 #BD8339 #39BD41

square

#3973BD #BD39B5 #BD8339 #39BD41

split-complementary

#3973BD #BD4139 #B5BD39

monochromatic

#1D3A5F #2B568E #3973BD #6393D0 #92B4DE

Accessibility & contrast

On white

4.82

#3973BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3973BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3973BD

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3973BD	#FFFFFF	#000000	##FFFFFF
##3973BD	1.00	4.82	4.36	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5179C0

Deuteranopia (green-blind)

#3D6CBC

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3973bd;
/* rgb */ color: rgb(57, 115, 189);
/* oklch */ color: oklch(55.3% 0.131 255.6);

Tailwind

colors: {
  custom: {
    50: '#7f9ad1',
    500: '#3973bd',
    950: '#000000',
  },
}

SCSS

$custom: #3973bd;
$custom-light: #7f9ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#3973bd",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 189
  },
  "hsl": {
    "h": 213.636,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.55314,
    "c": 0.13066,
    "h": 255.6
  },
  "luminance": 0.16805
}

Semantic roles & 50–950 ramp

primary

#3973BD

secondary

#C9AD89

accent

#9D4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3973BD

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

Preview Lab → · Contrast checker → · Palette generator →