#39339B#39339B

#39339B is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.7% C 0.163 H 278.5°. Best body text is #FFFFFF at 9.90:1 contrast (WCAG AA passes).

Color values

HEX	#39339B
RGB	rgb(57, 51, 155)
HSL	hsl(243, 50%, 40%)
HSV	hsv(243, 67%, 61%)
CMYK	cmyk(63.2%, 67.1%, 0%, 39.2%)
CIE-LAB	lab(28.39, 34.74, -55.91)
CIE-LCH	lch(28.39, 65.83, 301.85°)
OKLab	oklab(39.72% 0.0242 -0.1611)
OKLCH	oklch(39.72% 0.163 278.5)
XYZ	xyz(8.7857, 5.6034, 31.6226)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39339B #959B33

analogous

#33619B #39339B #6D339B

triadic

#39339B #9B3933 #339B39

tetradic

#39339B #9B3361 #959B33 #339B6D

square

#39339B #9B3361 #959B33 #339B6D

split-complementary

#39339B #9B6D33 #619B33

monochromatic

#17153F #28246D #39339B #4F48C3 #7C76D2

Accessibility & contrast

On white

9.90

#39339B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#39339B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39339B

9.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39339B	#FFFFFF	#000000	##FFFFFF
##39339B	1.00	9.90	2.12	9.90
#FFFFFF	9.90	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00479E

Deuteranopia (green-blind)

#003F99

Tritanopia (blue-blind)

#004E62

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #39339b;
/* rgb */ color: rgb(57, 51, 155);
/* oklch */ color: oklch(39.7% 0.163 278.5);

Tailwind

colors: {
  custom: {
    50: '#7b6bb9',
    500: '#39339b',
    950: '#000000',
  },
}

SCSS

$custom: #39339b;
$custom-light: #7b6bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#39339b",
  "rgb": {
    "r": 57,
    "g": 51,
    "b": 155
  },
  "hsl": {
    "h": 243.462,
    "s": 50.485,
    "l": 40.392
  },
  "oklch": {
    "l": 0.39721,
    "c": 0.16294,
    "h": 278.5
  },
  "luminance": 0.05604
}

Semantic roles & 50–950 ramp

primary

#39339B

secondary

#B6BA6F

accent

#DA4ED2

background

#F8F6FB

surface

#EFEBF6

border

#CAC6D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #39339B

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

Preview Lab → · Contrast checker → · Palette generator →