#3F79AF#3F79AF

#3F79AF is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.1% C 0.104 H 248.6°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3F79AF
RGB	rgb(63, 121, 175)
HSL	hsl(209, 47%, 47%)
HSV	hsv(209, 64%, 69%)
CMYK	cmyk(64%, 30.9%, 0%, 31.4%)
CIE-LAB	lab(49.28, -1.78, -34.31)
CIE-LCH	lch(49.28, 34.35, 267.03°)
OKLab	oklab(56.14% -0.0379 -0.0969)
OKLCH	oklch(56.14% 0.104 248.6)
XYZ	xyz(16.6223, 17.8250, 43.1137)
Luminance	0.1783 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F79AF #AF753F

analogous

#3FAFAD #3F79AF #3F41AF

triadic

#3F79AF #AF3F79 #79AF3F

tetradic

#3F79AF #AD3FAF #AF753F #41AF3F

square

#3F79AF #AD3FAF #AF753F #41AF3F

split-complementary

#3F79AF #AF3F41 #AFAD3F

monochromatic

#1F3B55 #2F5A82 #3F79AF #6497C7 #91B5D7

Accessibility & contrast

On white

4.60

#3F79AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#3F79AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3F79AF

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F79AF	#FFFFFF	#000000	##FFFFFF
##3F79AF	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627BB1

Deuteranopia (green-blind)

#5270AE

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3f79af;
/* rgb */ color: rgb(63, 121, 175);
/* oklch */ color: oklch(56.1% 0.104 248.6);

Tailwind

colors: {
  custom: {
    50: '#7f9fc7',
    500: '#3f79af',
    950: '#000000',
  },
}

SCSS

$custom: #3f79af;
$custom-light: #7f9fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f79af",
  "rgb": {
    "r": 63,
    "g": 121,
    "b": 175
  },
  "hsl": {
    "h": 208.929,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.56138,
    "c": 0.104,
    "h": 248.6
  },
  "luminance": 0.17827
}

Semantic roles & 50–950 ramp

primary

#3F79AF

secondary

#C3A487

accent

#9251D7

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F79AF

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

Preview Lab → · Contrast checker → · Palette generator →