#3F75AF#3F75AF

#3F75AF is a mid, moderate cyan. Relative luminance 0.169; OKLCH L 55.2% C 0.108 H 251.8°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F75AF
RGB	rgb(63, 117, 175)
HSL	hsl(211, 47%, 47%)
HSV	hsv(211, 64%, 69%)
CMYK	cmyk(64%, 33.1%, 0%, 31.4%)
CIE-LAB	lab(48.10, 0.62, -36.17)
CIE-LCH	lch(48.10, 36.17, 270.99°)
OKLab	oklab(55.21% -0.0336 -0.1023)
OKLCH	oklch(55.21% 0.108 251.8)
XYZ	xyz(16.1462, 16.8729, 42.9550)
Luminance	0.1687 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F75AF #AF793F

analogous

#3FADAF #3F75AF #413FAF

triadic

#3F75AF #AF3F75 #75AF3F

tetradic

#3F75AF #AF3FAD #AF793F #3FAF41

square

#3F75AF #AF3FAD #AF793F #3FAF41

split-complementary

#3F75AF #AF413F #ADAF3F

monochromatic

#1F3955 #2F5782 #3F75AF #6494C7 #91B3D7

Accessibility & contrast

On white

4.80

#3F75AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#3F75AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F75AF

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F75AF	#FFFFFF	#000000	##FFFFFF
##3F75AF	1.00	4.80	4.37	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C78B1

Deuteranopia (green-blind)

#4D6DAE

Tritanopia (blue-blind)

#00828A

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3f75af;
/* rgb */ color: rgb(63, 117, 175);
/* oklch */ color: oklch(55.2% 0.108 251.8);

Tailwind

colors: {
  custom: {
    50: '#7f9cc7',
    500: '#3f75af',
    950: '#000000',
  },
}

SCSS

$custom: #3f75af;
$custom-light: #7f9cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f75af",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 175
  },
  "hsl": {
    "h": 211.071,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.55209,
    "c": 0.10768,
    "h": 251.8
  },
  "luminance": 0.16874
}

Semantic roles & 50–950 ramp

primary

#3F75AF

secondary

#C3A687

accent

#9651D7

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F75AF

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

Preview Lab → · Contrast checker → · Palette generator →