#3F648F#3F648F

#3F648F is a mid, moderate cyan. Relative luminance 0.122; OKLCH L 49.5% C 0.081 H 253.1°. Best body text is #FFFFFF at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F648F
RGB	rgb(63, 100, 143)
HSL	hsl(212, 39%, 40%)
HSV	hsv(212, 56%, 56%)
CMYK	cmyk(55.9%, 30.1%, 0%, 43.9%)
CIE-LAB	lab(41.46, 0.09, -27.69)
CIE-LCH	lch(41.46, 27.69, 270.18°)
OKLab	oklab(49.49% -0.0237 -0.0778)
OKLCH	oklch(49.49% 0.081 253.1)
XYZ	xyz(11.5633, 12.1533, 27.7178)
Luminance	0.1215 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F648F #8F6A3F

analogous

#3F8C8F #3F648F #423F8F

triadic

#3F648F #8F3F64 #648F3F

tetradic

#3F648F #8F3F8C #8F6A3F #3F8F42

square

#3F648F #8F3F8C #8F6A3F #3F8F42

split-complementary

#3F648F #8F423F #8C8F3F

monochromatic

#1A293A #2C4665 #3F648F #5682B5 #81A2C7

Accessibility & contrast

On white

6.12

#3F648F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#3F648F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F648F

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F648F	#FFFFFF	#000000	##FFFFFF
##3F648F	1.00	6.12	3.43	6.12
#FFFFFF	6.12	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536691

Deuteranopia (green-blind)

#485E8E

Tritanopia (blue-blind)

#0C6E73

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f648f;
/* rgb */ color: rgb(63, 100, 143);
/* oklch */ color: oklch(49.5% 0.081 253.1);

Tailwind

colors: {
  custom: {
    50: '#7a8fb0',
    500: '#3f648f',
    950: '#000000',
  },
}

SCSS

$custom: #3f648f;
$custom-light: #7a8fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f648f",
  "rgb": {
    "r": 63,
    "g": 100,
    "b": 143
  },
  "hsl": {
    "h": 212.25,
    "s": 38.835,
    "l": 40.392
  },
  "oklch": {
    "l": 0.49489,
    "c": 0.08135,
    "h": 253.1
  },
  "luminance": 0.12154
}

Semantic roles & 50–950 ramp

primary

#3F648F

secondary

#B29778

accent

#9859CF

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#0A0C10

muted

#7C7D7F

Preview Lab

Preview with #3F648F

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

Preview Lab → · Contrast checker → · Palette generator →