#3F4597#3F4597

#3F4597 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.2% C 0.132 H 276.2°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#3F4597
RGB	rgb(63, 69, 151)
HSL	hsl(236, 41%, 42%)
HSV	hsv(236, 58%, 59%)
CMYK	cmyk(58.3%, 54.3%, 0%, 40.8%)
CIE-LAB	lab(33.02, 22.86, -45.93)
CIE-LCH	lch(33.02, 51.31, 296.46°)
OKLab	oklab(43.15% 0.0143 -0.1315)
OKLCH	oklch(43.15% 0.132 276.2)
XYZ	xyz(9.7621, 7.5467, 30.2144)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4597 #97913F

analogous

#3F7197 #3F4597 #653F97

triadic

#3F4597 #973F45 #45973F

tetradic

#3F4597 #973F71 #97913F #3F9765

square

#3F4597 #973F71 #97913F #3F9765

split-complementary

#3F4597 #97653F #71973F

monochromatic

#1B1E41 #2D316C #3F4597 #5960BA #8589CC

Accessibility & contrast

On white

8.37

#3F4597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#3F4597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4597

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4597	#FFFFFF	#000000	##FFFFFF
##3F4597	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#14519A

Deuteranopia (green-blind)

#004A95

Tritanopia (blue-blind)

#085867

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #3f4597;
/* rgb */ color: rgb(63, 69, 151);
/* oklch */ color: oklch(43.2% 0.132 276.2);

Tailwind

colors: {
  custom: {
    50: '#7c78b6',
    500: '#3f4597',
    950: '#000000',
  },
}

SCSS

$custom: #3f4597;
$custom-light: #7c78b6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4597",
  "rgb": {
    "r": 63,
    "g": 69,
    "b": 151
  },
  "hsl": {
    "h": 235.909,
    "s": 41.121,
    "l": 41.961
  },
  "oklch": {
    "l": 0.43154,
    "c": 0.13228,
    "h": 276.2
  },
  "luminance": 0.07547
}

Semantic roles & 50–950 ramp

primary

#3F4597

secondary

#B6B27C

accent

#C957D1

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #3F4597

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

Preview Lab → · Contrast checker → · Palette generator →