#3F73AF#3F73AF

#3F73AF is a mid, moderate cyan. Relative luminance 0.164; OKLCH L 54.7% C 0.110 H 253.3°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F73AF
RGB	rgb(63, 115, 175)
HSL	hsl(212, 47%, 47%)
HSV	hsv(212, 64%, 69%)
CMYK	cmyk(64%, 34.3%, 0%, 31.4%)
CIE-LAB	lab(47.51, 1.84, -37.10)
CIE-LCH	lch(47.51, 37.14, 272.84°)
OKLab	oklab(54.75% -0.0314 -0.105)
OKLCH	oklch(54.75% 0.11 253.3)
XYZ	xyz(15.9157, 16.4118, 42.8782)
Luminance	0.1641 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F73AF #AF7B3F

analogous

#3FABAF #3F73AF #433FAF

triadic

#3F73AF #AF3F73 #73AF3F

tetradic

#3F73AF #AF3FAB #AF7B3F #3FAF43

square

#3F73AF #AF3FAB #AF7B3F #3FAF43

split-complementary

#3F73AF #AF433F #ABAF3F

monochromatic

#1F3855 #2F5582 #3F73AF #6492C7 #91B2D7

Accessibility & contrast

On white

4.90

#3F73AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#3F73AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F73AF

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F73AF	#FFFFFF	#000000	##FFFFFF
##3F73AF	1.00	4.90	4.28	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5977B2

Deuteranopia (green-blind)

#4A6CAE

Tritanopia (blue-blind)

#008189

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3f73af;
/* rgb */ color: rgb(63, 115, 175);
/* oklch */ color: oklch(54.7% 0.110 253.3);

Tailwind

colors: {
  custom: {
    50: '#7f9bc7',
    500: '#3f73af',
    950: '#000000',
  },
}

SCSS

$custom: #3f73af;
$custom-light: #7f9bc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f73af",
  "rgb": {
    "r": 63,
    "g": 115,
    "b": 175
  },
  "hsl": {
    "h": 212.143,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.54747,
    "c": 0.10964,
    "h": 253.3
  },
  "luminance": 0.16413
}

Semantic roles & 50–950 ramp

primary

#3F73AF

secondary

#C3A787

accent

#9951D7

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F73AF

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

Preview Lab → · Contrast checker → · Palette generator →