#3F4497#3F4497

#3F4497 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.0% C 0.134 H 276.6°. Best body text is #FFFFFF at 8.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F4497
RGB	rgb(63, 68, 151)
HSL	hsl(237, 41%, 42%)
HSV	hsv(237, 58%, 59%)
CMYK	cmyk(58.3%, 55%, 0%, 40.8%)
CIE-LAB	lab(32.75, 23.52, -46.36)
CIE-LCH	lch(32.75, 51.99, 296.90°)
OKLab	oklab(42.96% 0.0154 -0.1328)
OKLCH	oklch(42.96% 0.134 276.6)
XYZ	xyz(9.7011, 7.4247, 30.1941)
Luminance	0.0742 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4497 #97923F

analogous

#3F7097 #3F4497 #663F97

triadic

#3F4497 #973F44 #44973F

tetradic

#3F4497 #973F70 #97923F #3F9766

square

#3F4497 #973F70 #97923F #3F9766

split-complementary

#3F4497 #97663F #70973F

monochromatic

#1B1D41 #2D316C #3F4497 #595FBA #8589CC

Accessibility & contrast

On white

8.45

#3F4497 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3F4497 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4497

8.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4497	#FFFFFF	#000000	##FFFFFF
##3F4497	1.00	8.45	2.49	8.45
#FFFFFF	8.45	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#10519A

Deuteranopia (green-blind)

#004995

Tritanopia (blue-blind)

#095767

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3f4497;
/* rgb */ color: rgb(63, 68, 151);
/* oklch */ color: oklch(43.0% 0.134 276.6);

Tailwind

colors: {
  custom: {
    50: '#7c77b6',
    500: '#3f4497',
    950: '#000000',
  },
}

SCSS

$custom: #3f4497;
$custom-light: #7c77b6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4497",
  "rgb": {
    "r": 63,
    "g": 68,
    "b": 151
  },
  "hsl": {
    "h": 236.591,
    "s": 41.121,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42956,
    "c": 0.13367,
    "h": 276.6
  },
  "luminance": 0.07425
}

Semantic roles & 50–950 ramp

primary

#3F4497

secondary

#B6B37C

accent

#CA57D1

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3F4497

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

Preview Lab → · Contrast checker → · Palette generator →