#3F5E8D#3F5E8D

#3F5E8D is a mid, moderate blue. Relative luminance 0.110; OKLCH L 48.0% C 0.085 H 258.5°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3F5E8D
RGB	rgb(63, 94, 141)
HSL	hsl(216, 38%, 40%)
HSV	hsv(216, 55%, 55%)
CMYK	cmyk(55.3%, 33.3%, 0%, 44.7%)
CIE-LAB	lab(39.55, 3.16, -29.47)
CIE-LCH	lch(39.55, 29.63, 276.11°)
OKLab	oklab(47.97% -0.0169 -0.083)
OKLCH	oklch(47.97% 0.085 258.5)
XYZ	xyz(10.8587, 10.9844, 26.7421)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5E8D #8D6E3F

analogous

#3F858D #3F5E8D #473F8D

triadic

#3F5E8D #8D3F5E #5E8D3F

tetradic

#3F5E8D #8D3F85 #8D6E3F #3F8D47

square

#3F5E8D #8D3F85 #8D6E3F #3F8D47

split-complementary

#3F5E8D #8D473F #858D3F

monochromatic

#192638 #2C4263 #3F5E8D #567BB3 #809CC6

Accessibility & contrast

On white

6.57

#3F5E8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3F5E8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5E8D

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5E8D	#FFFFFF	#000000	##FFFFFF
##3F5E8D	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B618F

Deuteranopia (green-blind)

#425A8C

Tritanopia (blue-blind)

#12686F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3f5e8d;
/* rgb */ color: rgb(63, 94, 141);
/* oklch */ color: oklch(48.0% 0.085 258.5);

Tailwind

colors: {
  custom: {
    50: '#7a8bae',
    500: '#3f5e8d',
    950: '#000000',
  },
}

SCSS

$custom: #3f5e8d;
$custom-light: #7a8bae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5e8d",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 141
  },
  "hsl": {
    "h": 216.154,
    "s": 38.235,
    "l": 40
  },
  "oklch": {
    "l": 0.47967,
    "c": 0.08473,
    "h": 258.5
  },
  "luminance": 0.10985
}

Semantic roles & 50–950 ramp

primary

#3F5E8D

secondary

#B19A77

accent

#A05ACE

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#090C10

muted

#7B7D7F

Preview Lab

Preview with #3F5E8D

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

Preview Lab → · Contrast checker → · Palette generator →