#3F4E9D#3F4E9D

#3F4E9D is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.4% C 0.129 H 272.2°. Best body text is #FFFFFF at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F4E9D
RGB	rgb(63, 78, 157)
HSL	hsl(230, 43%, 43%)
HSV	hsv(230, 60%, 62%)
CMYK	cmyk(59.9%, 50.3%, 0%, 38.4%)
CIE-LAB	lab(35.87, 19.05, -44.98)
CIE-LCH	lch(35.87, 48.85, 292.95°)
OKLab	oklab(45.43% 0.005 -0.1286)
OKLCH	oklch(45.43% 0.129 272.2)
XYZ	xyz(10.8581, 8.9390, 33.0450)
Luminance	0.0894 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4E9D #9D8E3F

analogous

#3F7D9D #3F4E9D #5F3F9D

triadic

#3F4E9D #9D3F4E #4E9D3F

tetradic

#3F4E9D #9D3F7D #9D8E3F #3F9D5F

square

#3F4E9D #9D3F7D #9D8E3F #3F9D5F

split-complementary

#3F4E9D #9D5F3F #7D9D3F

monochromatic

#1C2346 #2D3871 #3F4E9D #5C6BBD #8793CF

Accessibility & contrast

On white

7.53

#3F4E9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#3F4E9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F4E9D

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4E9D	#FFFFFF	#000000	##FFFFFF
##3F4E9D	1.00	7.53	2.79	7.53
#FFFFFF	7.53	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2559A0

Deuteranopia (green-blind)

#14509B

Tritanopia (blue-blind)

#00606E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3f4e9d;
/* rgb */ color: rgb(63, 78, 157);
/* oklch */ color: oklch(45.4% 0.129 272.2);

Tailwind

colors: {
  custom: {
    50: '#7d7fba',
    500: '#3f4e9d',
    950: '#000000',
  },
}

SCSS

$custom: #3f4e9d;
$custom-light: #7d7fba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4e9d",
  "rgb": {
    "r": 63,
    "g": 78,
    "b": 157
  },
  "hsl": {
    "h": 230.426,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4543,
    "c": 0.1287,
    "h": 272.2
  },
  "luminance": 0.0894
}

Semantic roles & 50–950 ramp

primary

#3F4E9D

secondary

#BAB07E

accent

#BF55D3

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #3F4E9D

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

Preview Lab → · Contrast checker → · Palette generator →