#3F4E84#3F4E84

#3F4E84 is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.8% C 0.091 H 270.6°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E84
RGB	rgb(63, 78, 132)
HSL	hsl(227, 35%, 38%)
HSV	hsv(227, 52%, 52%)
CMYK	cmyk(52.3%, 40.9%, 0%, 48.2%)
CIE-LAB	lab(34.34, 10.40, -32.21)
CIE-LCH	lch(34.34, 33.84, 287.90°)
OKLab	oklab(43.77% 0.0009 -0.0911)
OKLCH	oklch(43.77% 0.091 270.6)
XYZ	xyz(8.9378, 8.1709, 22.9315)
Luminance	0.0817 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E84 #84753F

analogous

#3F7084 #3F4E84 #523F84

triadic

#3F4E84 #843F4E #4E843F

tetradic

#3F4E84 #843F70 #84753F #3F8452

square

#3F4E84 #843F70 #84753F #3F8452

split-complementary

#3F4E84 #84523F #70843F

monochromatic

#171D31 #2B365B #3F4E84 #5367AD #7D8BC1

Accessibility & contrast

On white

7.97

#3F4E84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#3F4E84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E84

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E84	#FFFFFF	#000000	##FFFFFF
##3F4E84	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#395486

Deuteranopia (green-blind)

#314E83

Tritanopia (blue-blind)

#215A62

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f4e84;
/* rgb */ color: rgb(63, 78, 132);
/* oklch */ color: oklch(43.8% 0.091 270.6);

Tailwind

colors: {
  custom: {
    50: '#797fa8',
    500: '#3f4e84',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e84;
$custom-light: #797fa8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e84",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 132
  },
  "hsl": {
    "h": 226.957,
    "s": 35.385,
    "l": 38.235
  },
  "oklch": {
    "l": 0.43767,
    "c": 0.09113,
    "h": 270.6
  },
  "luminance": 0.08171
}

Semantic roles & 50–950 ramp

primary

#3F4E84

secondary

#AB9F74

accent

#B35CCB

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#090A0F

muted

#7B7C7F

Preview Lab

Preview with #3F4E84

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

Preview Lab → · Contrast checker → · Palette generator →