#3F4EAF#3F4EAF

#3F4EAF is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.8% C 0.154 H 272.4°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#3F4EAF
RGB	rgb(63, 78, 175)
HSL	hsl(232, 47%, 47%)
HSV	hsv(232, 64%, 69%)
CMYK	cmyk(64%, 55.4%, 0%, 31.4%)
CIE-LAB	lab(37.11, 25.39, -53.71)
CIE-LCH	lch(37.11, 59.42, 295.30°)
OKLab	oklab(46.77% 0.0064 -0.1543)
OKLCH	oklch(46.77% 0.154 272.4)
XYZ	xyz(12.5096, 9.5996, 41.7428)
Luminance	0.0960 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4EAF #AFA03F

analogous

#3F86AF #3F4EAF #683FAF

triadic

#3F4EAF #AF3F4E #4EAF3F

tetradic

#3F4EAF #AF3F86 #AFA03F #3FAF68

square

#3F4EAF #AF3F86 #AFA03F #3FAF68

split-complementary

#3F4EAF #AF683F #86AF3F

monochromatic

#1F2655 #2F3A82 #3F4EAF #6471C7 #919AD7

Accessibility & contrast

On white

7.19

#3F4EAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#3F4EAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4EAF

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4EAF	#FFFFFF	#000000	##FFFFFF
##3F4EAF	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB2

Deuteranopia (green-blind)

#0053AD

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3f4eaf;
/* rgb */ color: rgb(63, 78, 175);
/* oklch */ color: oklch(46.8% 0.154 272.4);

Tailwind

colors: {
  custom: {
    50: '#807fc8',
    500: '#3f4eaf',
    950: '#000000',
  },
}

SCSS

$custom: #3f4eaf;
$custom-light: #807fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4eaf",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 175
  },
  "hsl": {
    "h": 231.964,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.46768,
    "c": 0.15443,
    "h": 272.4
  },
  "luminance": 0.09601
}

Semantic roles & 50–950 ramp

primary

#3F4EAF

secondary

#C3BB87

accent

#C551D7

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F4EAF

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

Preview Lab → · Contrast checker → · Palette generator →