#3F648C#3F648C

#3F648C is a mid, moderate cyan. Relative luminance 0.121; OKLCH L 49.3% C 0.077 H 251.4°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F648C
RGB	rgb(63, 100, 140)
HSL	hsl(211, 38%, 40%)
HSV	hsv(211, 55%, 55%)
CMYK	cmyk(55%, 28.6%, 0%, 45.1%)
CIE-LAB	lab(41.32, -0.92, -26.11)
CIE-LCH	lch(41.32, 26.12, 267.99°)
OKLab	oklab(49.33% -0.0246 -0.0732)
OKLCH	oklch(49.33% 0.077 251.4)
XYZ	xyz(11.3390, 12.0637, 26.5368)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F648C #8C673F

analogous

#3F8B8C #3F648C #413F8C

triadic

#3F648C #8C3F64 #648C3F

tetradic

#3F648C #8C3F8B #8C673F #3F8C41

square

#3F648C #8C3F8B #8C673F #3F8C41

split-complementary

#3F648C #8C413F #8B8C3F

monochromatic

#192838 #2C4662 #3F648C #5582B3 #80A1C6

Accessibility & contrast

On white

6.15

#3F648C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3F648C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F648C

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F648C	#FFFFFF	#000000	##FFFFFF
##3F648C	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54668E

Deuteranopia (green-blind)

#4A5E8B

Tritanopia (blue-blind)

#116D72

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f648c;
/* rgb */ color: rgb(63, 100, 140);
/* oklch */ color: oklch(49.3% 0.077 251.4);

Tailwind

colors: {
  custom: {
    50: '#7a90ad',
    500: '#3f648c',
    950: '#000000',
  },
}

SCSS

$custom: #3f648c;
$custom-light: #7a90ad;
$custom-dark: #000000;

JSON

{
  "hex": "#3f648c",
  "rgb": {
    "r": 63,
    "g": 100,
    "b": 140
  },
  "hsl": {
    "h": 211.169,
    "s": 37.931,
    "l": 39.804
  },
  "oklch": {
    "l": 0.49331,
    "c": 0.07729,
    "h": 251.4
  },
  "luminance": 0.12065
}

Semantic roles & 50–950 ramp

primary

#3F648C

secondary

#B09577

accent

#965ACE

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#090C10

muted

#7B7D7F

Preview Lab

Preview with #3F648C

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

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