#3973B2#3973B2

#3973B2 is a mid, moderate cyan. Relative luminance 0.163; OKLCH L 54.7% C 0.116 H 252.4°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#3973B2
RGB	rgb(57, 115, 178)
HSL	hsl(211, 51%, 46%)
HSV	hsv(211, 68%, 70%)
CMYK	cmyk(68%, 35.4%, 0%, 30.2%)
CIE-LAB	lab(47.42, 1.84, -38.99)
CIE-LCH	lch(47.42, 39.04, 272.71°)
OKLab	oklab(54.66% -0.0352 -0.1107)
OKLCH	oklch(54.66% 0.116 252.4)
XYZ	xyz(15.8510, 16.3440, 44.4302)
Luminance	0.1635 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3973B2 #B27839

analogous

#39AFB2 #3973B2 #3C39B2

triadic

#3973B2 #B23973 #73B239

tetradic

#3973B2 #B239AF #B27839 #39B23C

square

#3973B2 #B239AF #B27839 #39B23C

split-complementary

#3973B2 #B23C39 #AFB239

monochromatic

#1B3755 #2A5584 #3973B2 #5D92CB #8BB1DA

Accessibility & contrast

On white

4.92

#3973B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#3973B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3973B2

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3973B2	#FFFFFF	#000000	##FFFFFF
##3973B2	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5777B5

Deuteranopia (green-blind)

#466BB1

Tritanopia (blue-blind)

#00828A

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3973b2;
/* rgb */ color: rgb(57, 115, 178);
/* oklch */ color: oklch(54.7% 0.116 252.4);

Tailwind

colors: {
  custom: {
    50: '#7d9ac9',
    500: '#3973b2',
    950: '#000000',
  },
}

SCSS

$custom: #3973b2;
$custom-light: #7d9ac9;
$custom-dark: #000000;

JSON

{
  "hex": "#3973b2",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 178
  },
  "hsl": {
    "h": 211.24,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.54662,
    "c": 0.11612,
    "h": 252.4
  },
  "luminance": 0.16346
}

Semantic roles & 50–950 ramp

primary

#3973B2

secondary

#C4A582

accent

#974DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3973B2

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

Preview Lab → · Contrast checker → · Palette generator →