#3F4E79#3F4E79

#3F4E79 is a dark, moderate blue. Relative luminance 0.079; OKLCH L 43.1% C 0.074 H 268.6°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E79
RGB	rgb(63, 78, 121)
HSL	hsl(224, 32%, 36%)
HSV	hsv(224, 48%, 47%)
CMYK	cmyk(47.9%, 35.5%, 0%, 52.5%)
CIE-LAB	lab(33.74, 6.74, -26.34)
CIE-LCH	lch(33.74, 27.19, 284.36°)
OKLab	oklab(43.12% -0.0018 -0.074)
OKLCH	oklch(43.12% 0.074 268.6)
XYZ	xyz(8.2244, 7.8855, 19.1741)
Luminance	0.0789 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E79 #796A3F

analogous

#3F6B79 #3F4E79 #4D3F79

triadic

#3F4E79 #793F4E #4E793F

tetradic

#3F4E79 #793F6B #796A3F #3F794D

square

#3F4E79 #793F6B #796A3F #3F794D

split-complementary

#3F4E79 #794D3F #6B793F

monochromatic

#151A29 #2A3451 #3F4E79 #5468A1 #798AB9

Accessibility & contrast

On white

8.15

#3F4E79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3F4E79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E79

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E79	#FFFFFF	#000000	##FFFFFF
##3F4E79	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E527B

Deuteranopia (green-blind)

#394D78

Tritanopia (blue-blind)

#29575E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f4e79;
/* rgb */ color: rgb(63, 78, 121);
/* oklch */ color: oklch(43.1% 0.074 268.6);

Tailwind

colors: {
  custom: {
    50: '#777fa0',
    500: '#3f4e79',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e79;
$custom-light: #777fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e79",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 121
  },
  "hsl": {
    "h": 224.483,
    "s": 31.522,
    "l": 36.078
  },
  "oklch": {
    "l": 0.43116,
    "c": 0.07405,
    "h": 268.6
  },
  "luminance": 0.07886
}

Semantic roles & 50–950 ramp

primary

#3F4E79

secondary

#A49670

accent

#AD60C8

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#090A0E

muted

#7B7C7E

Preview Lab

Preview with #3F4E79

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

Preview Lab → · Contrast checker → · Palette generator →