#3F477E#3F477E

#3F477E is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.8% C 0.092 H 275.5°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#3F477E
RGB	rgb(63, 71, 126)
HSL	hsl(232, 33%, 37%)
HSV	hsv(232, 50%, 49%)
CMYK	cmyk(50%, 43.7%, 0%, 50.6%)
CIE-LAB	lab(31.96, 13.00, -32.26)
CIE-LCH	lch(31.96, 34.78, 291.95°)
OKLab	oklab(41.84% 0.0087 -0.0913)
OKLCH	oklch(41.84% 0.092 275.5)
XYZ	xyz(8.0679, 7.0691, 20.6740)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F477E #7E763F

analogous

#3F677E #3F477E #573F7E

triadic

#3F477E #7E3F47 #477E3F

tetradic

#3F477E #7E3F67 #7E763F #3F7E57

square

#3F477E #7E3F67 #7E763F #3F7E57

split-complementary

#3F477E #7E573F #677E3F

monochromatic

#16192C #2B3055 #3F477E #535EA7 #7B83BD

Accessibility & contrast

On white

8.70

#3F477E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#3F477E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F477E

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F477E	#FFFFFF	#000000	##FFFFFF
##3F477E	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314E80

Deuteranopia (green-blind)

#2C497D

Tritanopia (blue-blind)

#27535C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f477e;
/* rgb */ color: rgb(63, 71, 126);
/* oklch */ color: oklch(41.8% 0.092 275.5);

Tailwind

colors: {
  custom: {
    50: '#787aa4',
    500: '#3f477e',
    950: '#000000',
  },
}

SCSS

$custom: #3f477e;
$custom-light: #787aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f477e",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 126
  },
  "hsl": {
    "h": 232.381,
    "s": 33.333,
    "l": 37.059
  },
  "oklch": {
    "l": 0.41836,
    "c": 0.09174,
    "h": 275.5
  },
  "luminance": 0.0707
}

Semantic roles & 50–950 ramp

primary

#3F477E

secondary

#A7A072

accent

#BC5EC9

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#09090F

muted

#7B7B7F

Preview Lab

Preview with #3F477E

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

Preview Lab → · Contrast checker → · Palette generator →