#3F559E#3F559E

#3F559E is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.0% C 0.121 H 268.8°. Best body text is #FFFFFF at 6.99:1 contrast (WCAG AA passes).

Color values

HEX	#3F559E
RGB	rgb(63, 85, 158)
HSL	hsl(226, 43%, 43%)
HSV	hsv(226, 60%, 62%)
CMYK	cmyk(60.1%, 46.2%, 0%, 38%)
CIE-LAB	lab(37.88, 14.82, -42.35)
CIE-LCH	lch(37.88, 44.87, 289.29°)
OKLab	oklab(46.98% -0.0025 -0.1208)
OKLCH	oklch(46.98% 0.121 268.8)
XYZ	xyz(11.4679, 10.0215, 33.6711)
Luminance	0.1002 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F559E #9E883F

analogous

#3F849E #3F559E #583F9E

triadic

#3F559E #9E3F55 #559E3F

tetradic

#3F559E #9E3F84 #9E883F #3F9E58

square

#3F559E #9E3F84 #9E883F #3F9E58

split-complementary

#3F559E #9E583F #849E3F

monochromatic

#1C2646 #2E3D72 #3F559E #5C73BE #8898D0

Accessibility & contrast

On white

6.99

#3F559E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.00

#3F559E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F559E

6.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F559E	#FFFFFF	#000000	##FFFFFF
##3F559E	1.00	6.99	3.00	6.99
#FFFFFF	6.99	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	6.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335EA1

Deuteranopia (green-blind)

#25559C

Tritanopia (blue-blind)

#006572

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3f559e;
/* rgb */ color: rgb(63, 85, 158);
/* oklch */ color: oklch(47.0% 0.121 268.8);

Tailwind

colors: {
  custom: {
    50: '#7c84bb',
    500: '#3f559e',
    950: '#000000',
  },
}

SCSS

$custom: #3f559e;
$custom-light: #7c84bb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f559e",
  "rgb": {
    "r": 63,
    "g": 85,
    "b": 158
  },
  "hsl": {
    "h": 226.105,
    "s": 42.986,
    "l": 43.333
  },
  "oklch": {
    "l": 0.46984,
    "c": 0.12082,
    "h": 268.8
  },
  "luminance": 0.10022
}

Semantic roles & 50–950 ramp

primary

#3F559E

secondary

#BAAC7F

accent

#B655D3

background

#F7F8FB

surface

#EEEFF6

border

#C9CAD0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3F559E

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

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