#3F569F#3F569F

#3F569F is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.3% C 0.121 H 268.4°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F569F
RGB	rgb(63, 86, 159)
HSL	hsl(226, 43%, 44%)
HSV	hsv(226, 60%, 62%)
CMYK	cmyk(60.4%, 45.9%, 0%, 37.6%)
CIE-LAB	lab(38.22, 14.53, -42.40)
CIE-LCH	lch(38.22, 44.82, 288.91°)
OKLab	oklab(47.27% -0.0035 -0.1209)
OKLCH	oklch(47.27% 0.121 268.4)
XYZ	xyz(11.6336, 10.2146, 34.1527)
Luminance	0.1022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F569F #9F883F

analogous

#3F869F #3F569F #583F9F

triadic

#3F569F #9F3F56 #569F3F

tetradic

#3F569F #9F3F86 #9F883F #3F9F58

square

#3F569F #9F3F86 #9F883F #3F9F58

split-complementary

#3F569F #9F583F #869F3F

monochromatic

#1C2747 #2E3E73 #3F569F #5D74BF #889AD0

Accessibility & contrast

On white

6.90

#3F569F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3F569F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F569F

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F569F	#FFFFFF	#000000	##FFFFFF
##3F569F	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#345FA2

Deuteranopia (green-blind)

#26569D

Tritanopia (blue-blind)

#006673

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3f569f;
/* rgb */ color: rgb(63, 86, 159);
/* oklch */ color: oklch(47.3% 0.121 268.4);

Tailwind

colors: {
  custom: {
    50: '#7d85bc',
    500: '#3f569f',
    950: '#000000',
  },
}

SCSS

$custom: #3f569f;
$custom-light: #7d85bc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f569f",
  "rgb": {
    "r": 63,
    "g": 86,
    "b": 159
  },
  "hsl": {
    "h": 225.625,
    "s": 43.243,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47267,
    "c": 0.12097,
    "h": 268.4
  },
  "luminance": 0.10216
}

Semantic roles & 50–950 ramp

primary

#3F569F

secondary

#BBAC7F

accent

#B555D3

background

#F8F8FB

surface

#EFEFF6

border

#CACAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3F569F

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

Preview Lab → · Contrast checker → · Palette generator →