#3F487A#3F487A

#3F487A is a dark, moderate blue. Relative luminance 0.071; OKLCH L 41.8% C 0.084 H 274.5°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F487A
RGB	rgb(63, 72, 122)
HSL	hsl(231, 32%, 36%)
HSV	hsv(231, 48%, 48%)
CMYK	cmyk(48.4%, 41%, 0%, 52.2%)
CIE-LAB	lab(32.02, 11.01, -29.67)
CIE-LCH	lch(32.02, 31.64, 290.36°)
OKLab	oklab(41.81% 0.0066 -0.0837)
OKLCH	oklch(41.81% 0.084 274.5)
XYZ	xyz(7.8790, 7.0962, 19.3631)
Luminance	0.0710 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F487A #7A713F

analogous

#3F667A #3F487A #543F7A

triadic

#3F487A #7A3F48 #487A3F

tetradic

#3F487A #7A3F66 #7A713F #3F7A54

square

#3F487A #7A3F66 #7A713F #3F7A54

split-complementary

#3F487A #7A543F #667A3F

monochromatic

#151829 #2A3052 #3F487A #5460A2 #7983BA

Accessibility & contrast

On white

8.68

#3F487A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3F487A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F487A

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F487A	#FFFFFF	#000000	##FFFFFF
##3F487A	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354E7C

Deuteranopia (green-blind)

#304979

Tritanopia (blue-blind)

#29525B

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3f487a;
/* rgb */ color: rgb(63, 72, 122);
/* oklch */ color: oklch(41.8% 0.084 274.5);

Tailwind

colors: {
  custom: {
    50: '#787aa1',
    500: '#3f487a',
    950: '#000000',
  },
}

SCSS

$custom: #3f487a;
$custom-light: #787aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f487a",
  "rgb": {
    "r": 63,
    "g": 72,
    "b": 122
  },
  "hsl": {
    "h": 230.847,
    "s": 31.892,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41808,
    "c": 0.08401,
    "h": 274.5
  },
  "luminance": 0.07097
}

Semantic roles & 50–950 ramp

primary

#3F487A

secondary

#A49C70

accent

#B860C8

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#09090F

muted

#7B7B7E

Preview Lab

Preview with #3F487A

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

Preview Lab → · Contrast checker → · Palette generator →