#3F398E#3F398E

#3F398E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.1% C 0.136 H 281.5°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#3F398E
RGB	rgb(63, 57, 142)
HSL	hsl(244, 43%, 39%)
HSV	hsv(244, 60%, 56%)
CMYK	cmyk(55.6%, 59.9%, 0%, 44.3%)
CIE-LAB	lab(29.25, 27.62, -46.52)
CIE-LCH	lch(29.25, 54.11, 300.70°)
OKLab	oklab(40.14% 0.0272 -0.1333)
OKLCH	oklch(40.14% 0.136 281.5)
XYZ	xyz(8.3940, 5.9355, 26.2893)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F398E #888E39

analogous

#395E8E #3F398E #6A398E

triadic

#3F398E #8E3F39 #398E3F

tetradic

#3F398E #8E395E #888E39 #398E6A

square

#3F398E #8E395E #888E39 #398E6A

split-complementary

#3F398E #8E6A39 #5E8E39

monochromatic

#181637 #2C2762 #3F398E #544DB7 #7E78C9

Accessibility & contrast

On white

9.60

#3F398E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#3F398E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F398E

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F398E	#FFFFFF	#000000	##FFFFFF
##3F398E	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004891

Deuteranopia (green-blind)

#00428C

Tritanopia (blue-blind)

#1B4D5E

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #3f398e;
/* rgb */ color: rgb(63, 57, 142);
/* oklch */ color: oklch(40.1% 0.136 281.5);

Tailwind

colors: {
  custom: {
    50: '#7b6fb0',
    500: '#3f398e',
    950: '#000000',
  },
}

SCSS

$custom: #3f398e;
$custom-light: #7b6fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f398e",
  "rgb": {
    "r": 63,
    "g": 57,
    "b": 142
  },
  "hsl": {
    "h": 244.235,
    "s": 42.714,
    "l": 39.02
  },
  "oklch": {
    "l": 0.40139,
    "c": 0.13608,
    "h": 281.5
  },
  "luminance": 0.05936
}

Semantic roles & 50–950 ramp

primary

#3F398E

secondary

#AEB271

accent

#D255CA

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #3F398E

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

Preview Lab → · Contrast checker → · Palette generator →