#3F5D8D#3F5D8D

#3F5D8D is a mid, moderate blue. Relative luminance 0.108; OKLCH L 47.7% C 0.086 H 259.5°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#3F5D8D
RGB	rgb(63, 93, 141)
HSL	hsl(217, 38%, 40%)
HSV	hsv(217, 55%, 55%)
CMYK	cmyk(55.3%, 34%, 0%, 44.7%)
CIE-LAB	lab(39.25, 3.79, -29.94)
CIE-LCH	lch(39.25, 30.18, 277.21°)
OKLab	oklab(47.73% -0.0157 -0.0844)
OKLCH	oklch(47.73% 0.086 259.5)
XYZ	xyz(10.7703, 10.8077, 26.7127)
Luminance	0.1081 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5D8D #8D6F3F

analogous

#3F848D #3F5D8D #483F8D

triadic

#3F5D8D #8D3F5D #5D8D3F

tetradic

#3F5D8D #8D3F84 #8D6F3F #3F8D48

square

#3F5D8D #8D3F84 #8D6F3F #3F8D48

split-complementary

#3F5D8D #8D483F #848D3F

monochromatic

#192538 #2C4163 #3F5D8D #567AB3 #809BC6

Accessibility & contrast

On white

6.64

#3F5D8D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#3F5D8D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5D8D

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5D8D	#FFFFFF	#000000	##FFFFFF
##3F5D8D	1.00	6.64	3.16	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A608F

Deuteranopia (green-blind)

#40598C

Tritanopia (blue-blind)

#13686E

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3f5d8d;
/* rgb */ color: rgb(63, 93, 141);
/* oklch */ color: oklch(47.7% 0.086 259.5);

Tailwind

colors: {
  custom: {
    50: '#7a8aae',
    500: '#3f5d8d',
    950: '#000000',
  },
}

SCSS

$custom: #3f5d8d;
$custom-light: #7a8aae;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5d8d",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 141
  },
  "hsl": {
    "h": 216.923,
    "s": 38.235,
    "l": 40
  },
  "oklch": {
    "l": 0.47734,
    "c": 0.08585,
    "h": 259.5
  },
  "luminance": 0.10809
}

Semantic roles & 50–950 ramp

primary

#3F5D8D

secondary

#B19B77

accent

#A15ACE

background

#F7F8FA

surface

#EEF0F4

border

#C9CBCE

text

#090B10

muted

#7B7C7F

Preview Lab

Preview with #3F5D8D

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

Preview Lab → · Contrast checker → · Palette generator →