#3F4EB4#3F4EB4

#3F4EB4 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 47.2% C 0.161 H 272.3°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#3F4EB4
RGB	rgb(63, 78, 180)
HSL	hsl(232, 48%, 48%)
HSV	hsv(232, 65%, 71%)
CMYK	cmyk(65%, 56.7%, 0%, 29.4%)
CIE-LAB	lab(37.48, 27.16, -56.08)
CIE-LCH	lch(37.48, 62.31, 295.84°)
OKLab	oklab(47.16% 0.0066 -0.1612)
OKLCH	oklch(47.16% 0.161 272.3)
XYZ	xyz(13.0098, 9.7997, 44.3771)
Luminance	0.0980 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4EB4 #B4A53F

analogous

#3F88B4 #3F4EB4 #6B3FB4

triadic

#3F4EB4 #B43F4E #4EB43F

tetradic

#3F4EB4 #B43F88 #B4A53F #3FB46B

square

#3F4EB4 #B43F88 #B4A53F #3FB46B

split-complementary

#3F4EB4 #B46B3F #88B43F

monochromatic

#1F2759 #2F3A87 #3F4EB4 #6773CA #949DDA

Accessibility & contrast

On white

7.09

#3F4EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#3F4EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4EB4

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4EB4	#FFFFFF	#000000	##FFFFFF
##3F4EB4	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB7

Deuteranopia (green-blind)

#0053B2

Tritanopia (blue-blind)

#006779

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3f4eb4;
/* rgb */ color: rgb(63, 78, 180);
/* oklch */ color: oklch(47.2% 0.161 272.3);

Tailwind

colors: {
  custom: {
    50: '#817fcb',
    500: '#3f4eb4',
    950: '#000000',
  },
}

SCSS

$custom: #3f4eb4;
$custom-light: #817fcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4eb4",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 180
  },
  "hsl": {
    "h": 232.308,
    "s": 48.148,
    "l": 47.647
  },
  "oklch": {
    "l": 0.47158,
    "c": 0.16138,
    "h": 272.3
  },
  "luminance": 0.09801
}

Semantic roles & 50–950 ramp

primary

#3F4EB4

secondary

#C5BD8A

accent

#C650D8

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3F4EB4

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

Preview Lab → · Contrast checker → · Palette generator →