#3973BA#3973BA

#3973BA is a mid, vivid cyan. Relative luminance 0.167; OKLCH L 55.1% C 0.127 H 254.8°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3973BA
RGB	rgb(57, 115, 186)
HSL	hsl(213, 53%, 48%)
HSV	hsv(213, 69%, 73%)
CMYK	cmyk(69.4%, 38.2%, 0%, 27.1%)
CIE-LAB	lab(47.85, 4.72, -42.96)
CIE-LCH	lch(47.85, 43.22, 276.27°)
OKLab	oklab(55.13% -0.0331 -0.1223)
OKLCH	oklch(55.13% 0.127 254.8)
XYZ	xyz(16.6778, 16.6747, 48.7845)
Luminance	0.1668 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3973BA #BA8039

analogous

#39B3BA #3973BA #3F39BA

triadic

#3973BA #BA3973 #73BA39

tetradic

#3973BA #BA39B3 #BA8039 #39BA3F

square

#3973BA #BA39B3 #BA8039 #39BA3F

split-complementary

#3973BA #BA3F39 #B3BA39

monochromatic

#1C395C #2B568B #3973BA #6193CF #90B3DD

Accessibility & contrast

On white

4.84

#3973BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#3973BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3973BA

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3973BA	#FFFFFF	#000000	##FFFFFF
##3973BA	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5378BD

Deuteranopia (green-blind)

#406CB9

Tritanopia (blue-blind)

#00838D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3973ba;
/* rgb */ color: rgb(57, 115, 186);
/* oklch */ color: oklch(55.1% 0.127 254.8);

Tailwind

colors: {
  custom: {
    50: '#7e9acf',
    500: '#3973ba',
    950: '#000000',
  },
}

SCSS

$custom: #3973ba;
$custom-light: #7e9acf;
$custom-dark: #000000;

JSON

{
  "hex": "#3973ba",
  "rgb": {
    "r": 57,
    "g": 115,
    "b": 186
  },
  "hsl": {
    "h": 213.023,
    "s": 53.086,
    "l": 47.647
  },
  "oklch": {
    "l": 0.55133,
    "c": 0.12667,
    "h": 254.8
  },
  "luminance": 0.16676
}

Semantic roles & 50–950 ramp

primary

#3973BA

secondary

#C8AB87

accent

#9B4BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3973BA

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

Preview Lab → · Contrast checker → · Palette generator →