#3F73AE#3F73AE

#3F73AE is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.7% C 0.108 H 253.0°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F73AE
RGB	rgb(63, 115, 174)
HSL	hsl(212, 47%, 46%)
HSV	hsv(212, 64%, 68%)
CMYK	cmyk(63.8%, 33.9%, 0%, 31.8%)
CIE-LAB	lab(47.46, 1.49, -36.59)
CIE-LCH	lch(47.46, 36.62, 272.33°)
OKLab	oklab(54.69% -0.0317 -0.1036)
OKLCH	oklch(54.69% 0.108 253)
XYZ	xyz(15.8178, 16.3727, 42.3628)
Luminance	0.1637 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F73AE #AE7A3F

analogous

#3FABAE #3F73AE #433FAE

triadic

#3F73AE #AE3F73 #73AE3F

tetradic

#3F73AE #AE3FAB #AE7A3F #3FAE43

square

#3F73AE #AE3FAB #AE7A3F #3FAE43

split-complementary

#3F73AE #AE433F #ABAE3F

monochromatic

#1E3854 #2F5581 #3F73AE #6492C7 #90B1D7

Accessibility & contrast

On white

4.91

#3F73AE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#3F73AE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F73AE

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F73AE	#FFFFFF	#000000	##FFFFFF
##3F73AE	1.00	4.91	4.27	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A76B0

Deuteranopia (green-blind)

#4A6CAD

Tritanopia (blue-blind)

#008188

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f73ae;
/* rgb */ color: rgb(63, 115, 174);
/* oklch */ color: oklch(54.7% 0.108 253.0);

Tailwind

colors: {
  custom: {
    50: '#7f9bc6',
    500: '#3f73ae',
    950: '#000000',
  },
}

SCSS

$custom: #3f73ae;
$custom-light: #7f9bc6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f73ae",
  "rgb": {
    "r": 63,
    "g": 115,
    "b": 174
  },
  "hsl": {
    "h": 211.892,
    "s": 46.835,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54691,
    "c": 0.10832,
    "h": 253
  },
  "luminance": 0.16374
}

Semantic roles & 50–950 ramp

primary

#3F73AE

secondary

#C2A687

accent

#9851D6

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F73AE

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

Preview Lab → · Contrast checker → · Palette generator →