#3973C4#3973C4

#3973C4 is a mid, vivid cyan. Relative luminance 0.171; OKLCH L 55.7% C 0.140 H 257.3°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3973C4
RGB	rgb(57, 115, 196)
HSL	hsl(215, 55%, 50%)
HSV	hsv(215, 71%, 77%)
CMYK	cmyk(70.9%, 41.3%, 0%, 23.1%)
CIE-LAB	lab(48.40, 8.34, -47.83)
CIE-LCH	lch(48.40, 48.55, 279.89°)
OKLab	oklab(55.75% -0.0308 -0.1366)
OKLCH	oklch(55.75% 0.14 257.3)
XYZ	xyz(17.7783, 17.1149, 54.5804)
Luminance	0.1712 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3973C4 #C48A39

analogous

#39B9C4 #3973C4 #4439C4

triadic

#3973C4 #C43973 #73C439

tetradic

#3973C4 #C439B9 #C48A39 #39C444

square

#3973C4 #C439B9 #C48A39 #39C444

split-complementary

#3973C4 #C44439 #B9C439

monochromatic

#1D3B65 #2B5795 #3973C4 #6794D3 #97B6E1

Accessibility & contrast

On white

4.75

#3973C4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3973C4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3973C4

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3973C4	#FFFFFF	#000000	##FFFFFF
##3973C4	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7AC7

Deuteranopia (green-blind)

#366DC2

Tritanopia (blue-blind)

#008692

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3973c4;
/* rgb */ color: rgb(57, 115, 196);
/* oklch */ color: oklch(55.7% 0.140 257.3);

Tailwind

colors: {
  custom: {
    50: '#809ad6',
    500: '#3973c4',
    950: '#000000',
  },
}

SCSS

$custom: #3973c4;
$custom-light: #809ad6;
$custom-dark: #000000;

JSON

{
  "hex": "#3973c4",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 196
  },
  "hsl": {
    "h": 214.964,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55747,
    "c": 0.14,
    "h": 257.3
  },
  "luminance": 0.17117
}

Semantic roles & 50–950 ramp

primary

#3973C4

secondary

#CCB28D

accent

#A04ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #3973C4

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

Preview Lab → · Contrast checker → · Palette generator →