#3973B4#3973B4

#3973B4 is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.8% C 0.119 H 253.0°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3973B4
RGB	rgb(57, 115, 180)
HSL	hsl(212, 52%, 46%)
HSV	hsv(212, 68%, 71%)
CMYK	cmyk(68.3%, 36.1%, 0%, 29.4%)
CIE-LAB	lab(47.53, 2.56, -39.99)
CIE-LCH	lch(47.53, 40.07, 273.66°)
OKLab	oklab(54.78% -0.0346 -0.1136)
OKLCH	oklch(54.78% 0.119 253)
XYZ	xyz(16.0533, 16.4249, 45.4955)
Luminance	0.1643 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3973B4 #B47A39

analogous

#39B1B4 #3973B4 #3C39B4

triadic

#3973B4 #B43973 #73B439

tetradic

#3973B4 #B439B1 #B47A39 #39B43C

square

#3973B4 #B439B1 #B47A39 #39B43C

split-complementary

#3973B4 #B43C39 #B1B439

monochromatic

#1C3857 #2A5586 #3973B4 #5E92CC #8DB1DB

Accessibility & contrast

On white

4.90

#3973B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#3973B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3973B4

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3973B4	#FFFFFF	#000000	##FFFFFF
##3973B4	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5677B7

Deuteranopia (green-blind)

#446BB3

Tritanopia (blue-blind)

#00828B

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3973b4;
/* rgb */ color: rgb(57, 115, 180);
/* oklch */ color: oklch(54.8% 0.119 253.0);

Tailwind

colors: {
  custom: {
    50: '#7d9acb',
    500: '#3973b4',
    950: '#000000',
  },
}

SCSS

$custom: #3973b4;
$custom-light: #7d9acb;
$custom-dark: #000000;

JSON

{
  "hex": "#3973b4",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 180
  },
  "hsl": {
    "h": 211.707,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54778,
    "c": 0.11874,
    "h": 253
  },
  "luminance": 0.16427
}

Semantic roles & 50–950 ramp

primary

#3973B4

secondary

#C5A683

accent

#984CDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3973B4

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

Preview Lab → · Contrast checker → · Palette generator →