#3F4E72#3F4E72

#3F4E72 is a dark, moderate blue. Relative luminance 0.077; OKLCH L 42.7% C 0.063 H 266.5°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E72
RGB	rgb(63, 78, 114)
HSL	hsl(222, 29%, 35%)
HSV	hsv(222, 45%, 45%)
CMYK	cmyk(44.7%, 31.6%, 0%, 55.3%)
CIE-LAB	lab(33.39, 4.48, -22.52)
CIE-LCH	lch(33.39, 22.96, 281.25°)
OKLab	oklab(42.73% -0.0039 -0.063)
OKLCH	oklch(42.73% 0.063 266.5)
XYZ	xyz(7.8106, 7.7200, 16.9949)
Luminance	0.0772 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E72 #72633F

analogous

#3F6872 #3F4E72 #4A3F72

triadic

#3F4E72 #723F4E #4E723F

tetradic

#3F4E72 #723F68 #72633F #3F724A

square

#3F4E72 #723F68 #72633F #3F724A

split-complementary

#3F4E72 #724A3F #68723F

monochromatic

#131823 #29334B #3F4E72 #556999 #7789B4

Accessibility & contrast

On white

8.25

#3F4E72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#3F4E72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E72

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E72	#FFFFFF	#000000	##FFFFFF
##3F4E72	1.00	8.25	2.54	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415174

Deuteranopia (green-blind)

#3C4C71

Tritanopia (blue-blind)

#2D555B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f4e72;
/* rgb */ color: rgb(63, 78, 114);
/* oklch */ color: oklch(42.7% 0.063 266.5);

Tailwind

colors: {
  custom: {
    50: '#767f9a',
    500: '#3f4e72',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e72;
$custom-light: #767f9a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e72",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 114
  },
  "hsl": {
    "h": 222.353,
    "s": 28.814,
    "l": 34.706
  },
  "oklch": {
    "l": 0.42728,
    "c": 0.06311,
    "h": 266.5
  },
  "luminance": 0.0772
}

Semantic roles & 50–950 ramp

primary

#3F4E72

secondary

#9F906E

accent

#A863C5

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#090A0E

muted

#7B7C7E

Preview Lab

Preview with #3F4E72

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

Preview Lab → · Contrast checker → · Palette generator →