#3F459D#3F459D

#3F459D is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.6% C 0.141 H 275.9°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#3F459D
RGB	rgb(63, 69, 157)
HSL	hsl(236, 43%, 43%)
HSV	hsv(236, 60%, 62%)
CMYK	cmyk(59.9%, 56.1%, 0%, 38.4%)
CIE-LAB	lab(33.45, 24.94, -48.88)
CIE-LCH	lch(33.45, 54.87, 297.04°)
OKLab	oklab(43.61% 0.0146 -0.1402)
OKLCH	oklch(43.61% 0.141 275.9)
XYZ	xyz(10.2619, 7.7466, 32.8462)
Luminance	0.0775 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F459D #9D973F

analogous

#3F749D #3F459D #683F9D

triadic

#3F459D #9D3F45 #459D3F

tetradic

#3F459D #9D3F74 #9D973F #3F9D68

square

#3F459D #9D3F74 #9D973F #3F9D68

split-complementary

#3F459D #9D683F #749D3F

monochromatic

#1C1F46 #2D3271 #3F459D #5C62BD #878CCF

Accessibility & contrast

On white

8.24

#3F459D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3F459D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F459D

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F459D	#FFFFFF	#000000	##FFFFFF
##3F459D	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0453A0

Deuteranopia (green-blind)

#004B9B

Tritanopia (blue-blind)

#005A6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3f459d;
/* rgb */ color: rgb(63, 69, 157);
/* oklch */ color: oklch(43.6% 0.141 275.9);

Tailwind

colors: {
  custom: {
    50: '#7d78bb',
    500: '#3f459d',
    950: '#000000',
  },
}

SCSS

$custom: #3f459d;
$custom-light: #7d78bb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f459d",
  "rgb": {
    "r": 63,
    "g": 69,
    "b": 157
  },
  "hsl": {
    "h": 236.17,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.43612,
    "c": 0.14091,
    "h": 275.9
  },
  "luminance": 0.07747
}

Semantic roles & 50–950 ramp

primary

#3F459D

secondary

#BAB67E

accent

#CB55D3

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3F459D

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

Preview Lab → · Contrast checker → · Palette generator →