#2F318C#2F318C

#2F318C is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.3% C 0.147 H 275.6°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#2F318C
RGB	rgb(47, 49, 140)
HSL	hsl(239, 50%, 37%)
HSV	hsv(239, 66%, 55%)
CMYK	cmyk(66.4%, 65%, 0%, 45.1%)
CIE-LAB	lab(25.84, 29.25, -50.88)
CIE-LCH	lch(25.84, 58.69, 299.89°)
OKLab	oklab(37.27% 0.0144 -0.1467)
OKLCH	oklch(37.27% 0.147 275.6)
XYZ	xyz(7.0027, 4.6938, 25.3428)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F318C #8C8A2F

analogous

#2F608C #2F318C #5C2F8C

triadic

#2F318C #8C2F31 #318C2F

tetradic

#2F318C #8C2F60 #8C8A2F #2F8C5C

square

#2F318C #8C2F60 #8C8A2F #2F8C5C

split-complementary

#2F318C #8C5C2F #608C2F

monochromatic

#101130 #20215E #2F318C #3E41BA #696BCD

Accessibility & contrast

On white

10.83

#2F318C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2F318C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F318C

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F318C	#FFFFFF	#000000	##FFFFFF
##2F318C	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418F

Deuteranopia (green-blind)

#00398A

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f318c;
/* rgb */ color: rgb(47, 49, 140);
/* oklch */ color: oklch(37.3% 0.147 275.6);

Tailwind

colors: {
  custom: {
    50: '#7369ae',
    500: '#2f318c',
    950: '#000000',
  },
}

SCSS

$custom: #2f318c;
$custom-light: #7369ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f318c",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 140
  },
  "hsl": {
    "h": 238.71,
    "s": 49.733,
    "l": 36.667
  },
  "oklch": {
    "l": 0.37267,
    "c": 0.14738,
    "h": 275.6
  },
  "luminance": 0.04694
}

Semantic roles & 50–950 ramp

primary

#2F318C

secondary

#B4B263

accent

#D64FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F318C

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

Preview Lab → · Contrast checker → · Palette generator →