#3F4797#3F4797

#3F4797 is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.6% C 0.130 H 275.4°. Best body text is #FFFFFF at 8.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F4797
RGB	rgb(63, 71, 151)
HSL	hsl(235, 41%, 42%)
HSV	hsv(235, 58%, 59%)
CMYK	cmyk(58.3%, 53%, 0%, 40.8%)
CIE-LAB	lab(33.56, 21.55, -45.07)
CIE-LCH	lch(33.56, 49.96, 295.55°)
OKLab	oklab(43.56% 0.0121 -0.1289)
OKLCH	oklch(43.56% 0.13 275.4)
XYZ	xyz(9.8872, 7.7969, 30.2561)
Luminance	0.0780 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4797 #978F3F

analogous

#3F7397 #3F4797 #633F97

triadic

#3F4797 #973F47 #47973F

tetradic

#3F4797 #973F73 #978F3F #3F9763

square

#3F4797 #973F73 #978F3F #3F9763

split-complementary

#3F4797 #97633F #73973F

monochromatic

#1B1E41 #2D336C #3F4797 #5962BA #858BCC

Accessibility & contrast

On white

8.20

#3F4797 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3F4797 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4797

8.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4797	#FFFFFF	#000000	##FFFFFF
##3F4797	1.00	8.20	2.56	8.20
#FFFFFF	8.20	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A539A

Deuteranopia (green-blind)

#064B95

Tritanopia (blue-blind)

#075968

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f4797;
/* rgb */ color: rgb(63, 71, 151);
/* oklch */ color: oklch(43.6% 0.130 275.4);

Tailwind

colors: {
  custom: {
    50: '#7c7ab6',
    500: '#3f4797',
    950: '#000000',
  },
}

SCSS

$custom: #3f4797;
$custom-light: #7c7ab6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4797",
  "rgb": {
    "r": 63,
    "g": 71,
    "b": 151
  },
  "hsl": {
    "h": 234.545,
    "s": 41.121,
    "l": 41.961
  },
  "oklch": {
    "l": 0.43557,
    "c": 0.1295,
    "h": 275.4
  },
  "luminance": 0.07798
}

Semantic roles & 50–950 ramp

primary

#3F4797

secondary

#B6B17C

accent

#C657D1

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #3F4797

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

Preview Lab → · Contrast checker → · Palette generator →