#2F319B#2F319B

#2F319B is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.7% C 0.168 H 274.4°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#2F319B
RGB	rgb(47, 49, 155)
HSL	hsl(239, 53%, 40%)
HSV	hsv(239, 70%, 61%)
CMYK	cmyk(69.7%, 68.4%, 0%, 39.2%)
CIE-LAB	lab(27.20, 34.57, -57.88)
CIE-LCH	lch(27.20, 67.42, 300.85°)
OKLab	oklab(38.68% 0.013 -0.1672)
OKLCH	oklch(38.68% 0.168 274.4)
XYZ	xyz(8.1850, 5.1668, 31.5699)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F319B #9B992F

analogous

#2F679B #2F319B #632F9B

triadic

#2F319B #9B2F31 #319B2F

tetradic

#2F319B #9B2F67 #9B992F #2F9B63

square

#2F319B #9B2F67 #9B992F #2F9B63

split-complementary

#2F319B #9B632F #679B2F

monochromatic

#13133D #21226C #2F319B #4244C6 #7172D4

Accessibility & contrast

On white

10.33

#2F319B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2F319B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F319B

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F319B	#FFFFFF	#000000	##FFFFFF
##2F319B	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459E

Deuteranopia (green-blind)

#003B99

Tritanopia (blue-blind)

#004D62

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2f319b;
/* rgb */ color: rgb(47, 49, 155);
/* oklch */ color: oklch(38.7% 0.168 274.4);

Tailwind

colors: {
  custom: {
    50: '#7769b9',
    500: '#2f319b',
    950: '#000000',
  },
}

SCSS

$custom: #2f319b;
$custom-light: #7769b9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f319b",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 155
  },
  "hsl": {
    "h": 238.889,
    "s": 53.465,
    "l": 39.608
  },
  "oklch": {
    "l": 0.38677,
    "c": 0.16769,
    "h": 274.4
  },
  "luminance": 0.05168
}

Semantic roles & 50–950 ramp

primary

#2F319B

secondary

#BBBA6A

accent

#DA4BDD

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2F319B

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

Preview Lab → · Contrast checker → · Palette generator →