#3F4397#3F4397

#3F4397 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.8% C 0.135 H 277.0°. Best body text is #FFFFFF at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F4397
RGB	rgb(63, 67, 151)
HSL	hsl(237, 41%, 42%)
HSV	hsv(237, 58%, 59%)
CMYK	cmyk(58.3%, 55.6%, 0%, 40.8%)
CIE-LAB	lab(32.49, 24.17, -46.79)
CIE-LCH	lch(32.49, 52.66, 297.32°)
OKLab	oklab(42.76% 0.0164 -0.134)
OKLCH	oklch(42.76% 0.135 277)
XYZ	xyz(9.6412, 7.3048, 30.1741)
Luminance	0.0731 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4397 #97933F

analogous

#3F6F97 #3F4397 #673F97

triadic

#3F4397 #973F43 #43973F

tetradic

#3F4397 #973F6F #97933F #3F9767

square

#3F4397 #973F6F #97933F #3F9767

split-complementary

#3F4397 #97673F #6F973F

monochromatic

#1B1D41 #2D306C #3F4397 #595EBA #8588CC

Accessibility & contrast

On white

8.53

#3F4397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3F4397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4397

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4397	#FFFFFF	#000000	##FFFFFF
##3F4397	1.00	8.53	2.46	8.53
#FFFFFF	8.53	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B509A

Deuteranopia (green-blind)

#004995

Tritanopia (blue-blind)

#095666

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3f4397;
/* rgb */ color: rgb(63, 67, 151);
/* oklch */ color: oklch(42.8% 0.135 277.0);

Tailwind

colors: {
  custom: {
    50: '#7c77b6',
    500: '#3f4397',
    950: '#000000',
  },
}

SCSS

$custom: #3f4397;
$custom-light: #7c77b6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4397",
  "rgb": {
    "r": 63,
    "g": 67,
    "b": 151
  },
  "hsl": {
    "h": 237.273,
    "s": 41.121,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42758,
    "c": 0.13504,
    "h": 277
  },
  "luminance": 0.07305
}

Semantic roles & 50–950 ramp

primary

#3F4397

secondary

#B6B47C

accent

#CB57D1

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3F4397

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

Preview Lab → · Contrast checker → · Palette generator →