#3973BE#3973BE

#3973BE is a mid, vivid cyan. Relative luminance 0.168; OKLCH L 55.4% C 0.132 H 255.9°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3973BE
RGB	rgb(57, 115, 190)
HSL	hsl(214, 54%, 48%)
HSV	hsv(214, 70%, 75%)
CMYK	cmyk(70%, 39.5%, 0%, 25.5%)
CIE-LAB	lab(48.07, 6.16, -44.92)
CIE-LCH	lch(48.07, 45.34, 277.81°)
OKLab	oklab(55.38% -0.0322 -0.128)
OKLCH	oklch(55.38% 0.132 255.9)
XYZ	xyz(17.1089, 16.8472, 51.0554)
Luminance	0.1685 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3973BE #BE8439

analogous

#39B5BE #3973BE #4239BE

triadic

#3973BE #BE3973 #73BE39

tetradic

#3973BE #BE39B5 #BE8439 #39BE42

square

#3973BE #BE39B5 #BE8439 #39BE42

split-complementary

#3973BE #BE4239 #B5BE39

monochromatic

#1D3A60 #2B578F #3973BE #6493D0 #93B4DF

Accessibility & contrast

On white

4.81

#3973BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3973BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3973BE

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3973BE	#FFFFFF	#000000	##FFFFFF
##3973BE	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5079C1

Deuteranopia (green-blind)

#3C6CBC

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3973be;
/* rgb */ color: rgb(57, 115, 190);
/* oklch */ color: oklch(55.4% 0.132 255.9);

Tailwind

colors: {
  custom: {
    50: '#7f9ad2',
    500: '#3973be',
    950: '#000000',
  },
}

SCSS

$custom: #3973be;
$custom-light: #7f9ad2;
$custom-dark: #000000;

JSON

{
  "hex": "#3973be",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 190
  },
  "hsl": {
    "h": 213.835,
    "s": 53.846,
    "l": 48.431
  },
  "oklch": {
    "l": 0.55375,
    "c": 0.13199,
    "h": 255.9
  },
  "luminance": 0.16849
}

Semantic roles & 50–950 ramp

primary

#3973BE

secondary

#CAAE89

accent

#9D4BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3973BE

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

Preview Lab → · Contrast checker → · Palette generator →