#3F4898#3F4898

#3F4898 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.8% C 0.130 H 274.9°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F4898
RGB	rgb(63, 72, 152)
HSL	hsl(234, 41%, 42%)
HSV	hsv(234, 59%, 60%)
CMYK	cmyk(58.6%, 52.6%, 0%, 40.4%)
CIE-LAB	lab(33.89, 21.24, -45.13)
CIE-LCH	lch(33.89, 49.88, 295.20°)
OKLab	oklab(43.83% 0.0111 -0.1291)
OKLCH	oklch(43.83% 0.13 274.9)
XYZ	xyz(10.0329, 7.9578, 30.7070)
Luminance	0.0796 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4898 #988F3F

analogous

#3F7498 #3F4898 #633F98

triadic

#3F4898 #983F48 #48983F

tetradic

#3F4898 #983F74 #988F3F #3F9863

square

#3F4898 #983F74 #988F3F #3F9863

split-complementary

#3F4898 #98633F #74983F

monochromatic

#1B1F41 #2D346D #3F4898 #5A63BA #858CCC

Accessibility & contrast

On white

8.10

#3F4898 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#3F4898 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4898

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4898	#FFFFFF	#000000	##FFFFFF
##3F4898	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C549B

Deuteranopia (green-blind)

#084C96

Tritanopia (blue-blind)

#045A69

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3f4898;
/* rgb */ color: rgb(63, 72, 152);
/* oklch */ color: oklch(43.8% 0.130 274.9);

Tailwind

colors: {
  custom: {
    50: '#7c7ab7',
    500: '#3f4898',
    950: '#000000',
  },
}

SCSS

$custom: #3f4898;
$custom-light: #7c7ab7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4898",
  "rgb": {
    "r": 63,
    "g": 72,
    "b": 152
  },
  "hsl": {
    "h": 233.933,
    "s": 41.395,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43834,
    "c": 0.12958,
    "h": 274.9
  },
  "luminance": 0.07958
}

Semantic roles & 50–950 ramp

primary

#3F4898

secondary

#B7B17C

accent

#C557D1

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #3F4898

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

Preview Lab → · Contrast checker → · Palette generator →