#3F648E#3F648E

#3F648E is a mid, moderate cyan. Relative luminance 0.121; OKLCH L 49.4% C 0.080 H 252.5°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#3F648E
RGB	rgb(63, 100, 142)
HSL	hsl(212, 39%, 40%)
HSV	hsv(212, 56%, 56%)
CMYK	cmyk(55.6%, 29.6%, 0%, 44.3%)
CIE-LAB	lab(41.41, -0.25, -27.16)
CIE-LCH	lch(41.41, 27.16, 269.47°)
OKLab	oklab(49.44% -0.024 -0.0763)
OKLCH	oklch(49.44% 0.08 252.5)
XYZ	xyz(11.4878, 12.1232, 27.3206)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F648E #8E693F

analogous

#3F8B8E #3F648E #413F8E

triadic

#3F648E #8E3F64 #648E3F

tetradic

#3F648E #8E3F8B #8E693F #3F8E41

square

#3F648E #8E3F8B #8E693F #3F8E41

split-complementary

#3F648E #8E413F #8B8E3F

monochromatic

#192839 #2C4664 #3F648E #5682B4 #81A1C7

Accessibility & contrast

On white

6.13

#3F648E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#3F648E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F648E

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F648E	#FFFFFF	#000000	##FFFFFF
##3F648E	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#536690

Deuteranopia (green-blind)

#495E8D

Tritanopia (blue-blind)

#0E6E73

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f648e;
/* rgb */ color: rgb(63, 100, 142);
/* oklch */ color: oklch(49.4% 0.080 252.5);

Tailwind

colors: {
  custom: {
    50: '#7a8faf',
    500: '#3f648e',
    950: '#000000',
  },
}

SCSS

$custom: #3f648e;
$custom-light: #7a8faf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f648e",
  "rgb": {
    "r": 63,
    "g": 100,
    "b": 142
  },
  "hsl": {
    "h": 211.899,
    "s": 38.537,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49436,
    "c": 0.07999,
    "h": 252.5
  },
  "luminance": 0.12124
}

Semantic roles & 50–950 ramp

primary

#3F648E

secondary

#B19678

accent

#9859CE

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#0A0C10

muted

#7C7D7F

Preview Lab

Preview with #3F648E

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

Preview Lab → · Contrast checker → · Palette generator →