#3F4E80#3F4E80

#3F4E80 is a dark, moderate blue. Relative luminance 0.081; OKLCH L 43.5% C 0.085 H 270.0°. Best body text is #FFFFFF at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E80
RGB	rgb(63, 78, 128)
HSL	hsl(226, 34%, 37%)
HSV	hsv(226, 51%, 50%)
CMYK	cmyk(50.8%, 39.1%, 0%, 49.8%)
CIE-LAB	lab(34.11, 9.06, -30.09)
CIE-LCH	lch(34.11, 31.42, 286.75°)
OKLab	oklab(43.52% 0 -0.0849)
OKLCH	oklch(43.52% 0.085 270)
XYZ	xyz(8.6693, 8.0635, 21.5175)
Luminance	0.0806 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E80 #80713F

analogous

#3F6E80 #3F4E80 #513F80

triadic

#3F4E80 #803F4E #4E803F

tetradic

#3F4E80 #803F6E #80713F #3F8051

square

#3F4E80 #803F6E #80713F #3F8051

split-complementary

#3F4E80 #80513F #6E803F

monochromatic

#171C2E #2B3557 #3F4E80 #5367A9 #7B8BBE

Accessibility & contrast

On white

8.04

#3F4E80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#3F4E80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E80

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E80	#FFFFFF	#000000	##FFFFFF
##3F4E80	1.00	8.04	2.61	8.04
#FFFFFF	8.04	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B5382

Deuteranopia (green-blind)

#344E7F

Tritanopia (blue-blind)

#245961

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f4e80;
/* rgb */ color: rgb(63, 78, 128);
/* oklch */ color: oklch(43.5% 0.085 270.0);

Tailwind

colors: {
  custom: {
    50: '#787fa5',
    500: '#3f4e80',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e80;
$custom-light: #787fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e80",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 128
  },
  "hsl": {
    "h": 226.154,
    "s": 34.031,
    "l": 37.451
  },
  "oklch": {
    "l": 0.43524,
    "c": 0.08495,
    "h": 270
  },
  "luminance": 0.08064
}

Semantic roles & 50–950 ramp

primary

#3F4E80

secondary

#A89C72

accent

#B15ECA

background

#F7F7FA

surface

#EDEEF4

border

#C8C9CE

text

#090A0F

muted

#7B7C7F

Preview Lab

Preview with #3F4E80

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

Preview Lab → · Contrast checker → · Palette generator →