#3F4E82#3F4E82

#3F4E82 is a dark, moderate blue. Relative luminance 0.081; OKLCH L 43.6% C 0.088 H 270.3°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E82
RGB	rgb(63, 78, 130)
HSL	hsl(227, 35%, 38%)
HSV	hsv(227, 52%, 51%)
CMYK	cmyk(51.5%, 40%, 0%, 49%)
CIE-LAB	lab(34.22, 9.73, -31.15)
CIE-LCH	lch(34.22, 32.63, 287.35°)
OKLab	oklab(43.65% 0.0004 -0.088)
OKLCH	oklch(43.65% 0.088 270.3)
XYZ	xyz(8.8023, 8.1167, 22.2176)
Luminance	0.0812 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E82 #82733F

analogous

#3F6F82 #3F4E82 #513F82

triadic

#3F4E82 #823F4E #4E823F

tetradic

#3F4E82 #823F6F #82733F #3F8251

square

#3F4E82 #823F6F #82733F #3F8251

split-complementary

#3F4E82 #82513F #6F823F

monochromatic

#171D30 #2B3559 #3F4E82 #5367AB #7C8BBF

Accessibility & contrast

On white

8.00

#3F4E82 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#3F4E82 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E82

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E82	#FFFFFF	#000000	##FFFFFF
##3F4E82	1.00	8.00	2.62	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A5484

Deuteranopia (green-blind)

#334E81

Tritanopia (blue-blind)

#235961

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f4e82;
/* rgb */ color: rgb(63, 78, 130);
/* oklch */ color: oklch(43.6% 0.088 270.3);

Tailwind

colors: {
  custom: {
    50: '#787fa6',
    500: '#3f4e82',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e82;
$custom-light: #787fa6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e82",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 130
  },
  "hsl": {
    "h": 226.567,
    "s": 34.715,
    "l": 37.843
  },
  "oklch": {
    "l": 0.43645,
    "c": 0.08804,
    "h": 270.3
  },
  "luminance": 0.08117
}

Semantic roles & 50–950 ramp

primary

#3F4E82

secondary

#AA9E73

accent

#B25DCB

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#090A0F

muted

#7B7C7F

Preview Lab

Preview with #3F4E82

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

Preview Lab → · Contrast checker → · Palette generator →