#3B439A#3B439A

#3B439A is a dark, vivid blue. Relative luminance 0.073; OKLCH L 42.7% C 0.140 H 274.8°. Best body text is #FFFFFF at 8.55:1 contrast (WCAG AA passes).

Color values

HEX	#3B439A
RGB	rgb(59, 67, 154)
HSL	hsl(235, 45%, 42%)
HSV	hsv(235, 62%, 60%)
CMYK	cmyk(61.7%, 56.5%, 0%, 39.6%)
CIE-LAB	lab(32.43, 24.45, -48.73)
CIE-LCH	lch(32.43, 54.51, 296.64°)
OKLab	oklab(42.71% 0.0118 -0.1398)
OKLCH	oklch(42.71% 0.14 274.8)
XYZ	xyz(9.6416, 7.2765, 31.4620)
Luminance	0.0728 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B439A #9A923B

analogous

#3B739A #3B439A #633B9A

triadic

#3B439A #9A3B43 #439A3B

tetradic

#3B439A #9A3B73 #9A923B #3B9A63

square

#3B439A #9A3B73 #9A923B #3B9A63

split-complementary

#3B439A #9A633B #739A3B

monochromatic

#191C42 #2A306E #3B439A #555DBE #8187CF

Accessibility & contrast

On white

8.55

#3B439A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#3B439A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B439A

8.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B439A	#FFFFFF	#000000	##FFFFFF
##3B439A	1.00	8.55	2.46	8.55
#FFFFFF	8.55	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00509D

Deuteranopia (green-blind)

#004898

Tritanopia (blue-blind)

#005868

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #3b439a;
/* rgb */ color: rgb(59, 67, 154);
/* oklch */ color: oklch(42.7% 0.140 274.8);

Tailwind

colors: {
  custom: {
    50: '#7b77b8',
    500: '#3b439a',
    950: '#000000',
  },
}

SCSS

$custom: #3b439a;
$custom-light: #7b77b8;
$custom-dark: #000000;

JSON

{
  "hex": "#3b439a",
  "rgb": {
    "r": 59,
    "g": 67,
    "b": 154
  },
  "hsl": {
    "h": 234.947,
    "s": 44.601,
    "l": 41.765
  },
  "oklch": {
    "l": 0.42708,
    "c": 0.14035,
    "h": 274.8
  },
  "luminance": 0.07277
}

Semantic roles & 50–950 ramp

primary

#3B439A

secondary

#B8B378

accent

#C953D4

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#0A0811

muted

#7C7B80

Preview Lab

Preview with #3B439A

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

Preview Lab → · Contrast checker → · Palette generator →