#39399B#39399B

#39399B is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.8% C 0.155 H 277.0°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#39399B
RGB	rgb(57, 57, 155)
HSL	hsl(240, 46%, 42%)
HSV	hsv(240, 63%, 61%)
CMYK	cmyk(63.2%, 63.2%, 0%, 39.2%)
CIE-LAB	lab(29.82, 30.95, -53.58)
CIE-LCH	lch(29.82, 61.88, 300.01°)
OKLab	oklab(40.76% 0.0189 -0.1543)
OKLCH	oklch(40.76% 0.155 277)
XYZ	xyz(9.0649, 6.1620, 31.7157)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 7.33

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#39399B #9B9B39

analogous

#396A9B #39399B #6A399B

triadic

#39399B #9B3939 #399B39

tetradic

#39399B #9B396A #9B9B39 #399B6A

square

#39399B #9B396A #9B9B39 #399B6A

split-complementary

#39399B #9B6A39 #6A9B39

monochromatic

#181842 #29296E #39399B #5252BF #7F7FD0

Accessibility & contrast

On white

9.41

#39399B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#39399B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #39399B

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##39399B	#FFFFFF	#000000	##FFFFFF
##39399B	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9E

Deuteranopia (green-blind)

#004299

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #39399b;
/* rgb */ color: rgb(57, 57, 155);
/* oklch */ color: oklch(40.8% 0.155 277.0);

Tailwind

colors: {
  custom: {
    50: '#7b6fb9',
    500: '#39399b',
    950: '#000000',
  },
}

SCSS

$custom: #39399b;
$custom-light: #7b6fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#39399b",
  "rgb": {
    "r": 57,
    "g": 57,
    "b": 155
  },
  "hsl": {
    "h": 240,
    "s": 46.226,
    "l": 41.569
  },
  "oklch": {
    "l": 0.40763,
    "c": 0.15543,
    "h": 277
  },
  "luminance": 0.06163
}

Semantic roles & 50–950 ramp

primary

#39399B

secondary

#B9B977

accent

#D652D6

background

#F7F6FB

surface

#EEECF6

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #39399B

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

Preview Lab → · Contrast checker → · Palette generator →