#3F477D#3F477D

#3F477D is a dark, moderate blue. Relative luminance 0.070; OKLCH L 41.8% C 0.090 H 275.4°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F477D
RGB	rgb(63, 71, 125)
HSL	hsl(232, 33%, 37%)
HSV	hsv(232, 50%, 49%)
CMYK	cmyk(49.6%, 43.2%, 0%, 51%)
CIE-LAB	lab(31.91, 12.67, -31.73)
CIE-LCH	lch(31.91, 34.16, 291.76°)
OKLab	oklab(41.77% 0.0085 -0.0898)
OKLCH	oklch(41.77% 0.09 275.4)
XYZ	xyz(8.0037, 7.0435, 20.3358)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F477D #7D753F

analogous

#3F667D #3F477D #563F7D

triadic

#3F477D #7D3F47 #477D3F

tetradic

#3F477D #7D3F66 #7D753F #3F7D56

square

#3F477D #7D3F66 #7D753F #3F7D56

split-complementary

#3F477D #7D563F #667D3F

monochromatic

#16192C #2A3054 #3F477D #545EA6 #7A83BC

Accessibility & contrast

On white

8.72

#3F477D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3F477D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F477D

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F477D	#FFFFFF	#000000	##FFFFFF
##3F477D	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#324E7F

Deuteranopia (green-blind)

#2D497C

Tritanopia (blue-blind)

#28525C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f477d;
/* rgb */ color: rgb(63, 71, 125);
/* oklch */ color: oklch(41.8% 0.090 275.4);

Tailwind

colors: {
  custom: {
    50: '#787aa3',
    500: '#3f477d',
    950: '#000000',
  },
}

SCSS

$custom: #3f477d;
$custom-light: #787aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f477d",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 125
  },
  "hsl": {
    "h": 232.258,
    "s": 32.979,
    "l": 36.863
  },
  "oklch": {
    "l": 0.41772,
    "c": 0.09017,
    "h": 275.4
  },
  "luminance": 0.07044
}

Semantic roles & 50–950 ramp

primary

#3F477D

secondary

#A6A071

accent

#BB5FC9

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#09090F

muted

#7B7B7F

Preview Lab

Preview with #3F477D

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

Preview Lab → · Contrast checker → · Palette generator →