#3F4E87#3F4E87

#3F4E87 is a dark, moderate blue. Relative luminance 0.083; OKLCH L 44.0% C 0.096 H 270.9°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E87
RGB	rgb(63, 78, 135)
HSL	hsl(228, 36%, 39%)
HSV	hsv(228, 53%, 53%)
CMYK	cmyk(53.3%, 42.2%, 0%, 47.1%)
CIE-LAB	lab(34.51, 11.42, -33.78)
CIE-LCH	lch(34.51, 35.66, 288.68°)
OKLab	oklab(43.95% 0.0015 -0.0957)
OKLCH	oklch(43.95% 0.096 270.9)
XYZ	xyz(9.1460, 8.2542, 24.0282)
Luminance	0.0825 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E87 #87783F

analogous

#3F7287 #3F4E87 #543F87

triadic

#3F4E87 #873F4E #4E873F

tetradic

#3F4E87 #873F72 #87783F #3F8754

square

#3F4E87 #873F72 #87783F #3F8754

split-complementary

#3F4E87 #87543F #72873F

monochromatic

#181E34 #2C365D #3F4E87 #5467AF #7E8CC3

Accessibility & contrast

On white

7.92

#3F4E87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#3F4E87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E87

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E87	#FFFFFF	#000000	##FFFFFF
##3F4E87	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375489

Deuteranopia (green-blind)

#2F4E86

Tritanopia (blue-blind)

#1E5A64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3f4e87;
/* rgb */ color: rgb(63, 78, 135);
/* oklch */ color: oklch(44.0% 0.096 270.9);

Tailwind

colors: {
  custom: {
    50: '#797faa',
    500: '#3f4e87',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e87;
$custom-light: #797faa;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e87",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 135
  },
  "hsl": {
    "h": 227.5,
    "s": 36.364,
    "l": 38.824
  },
  "oklch": {
    "l": 0.43954,
    "c": 0.09574,
    "h": 270.9
  },
  "luminance": 0.08255
}

Semantic roles & 50–950 ramp

primary

#3F4E87

secondary

#ADA175

accent

#B55BCC

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#090A10

muted

#7B7C7F

Preview Lab

Preview with #3F4E87

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

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