#2F318D#2F318D

#2F318D is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.4% C 0.149 H 275.5°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#2F318D
RGB	rgb(47, 49, 141)
HSL	hsl(239, 50%, 37%)
HSV	hsv(239, 67%, 55%)
CMYK	cmyk(66.7%, 65.2%, 0%, 44.7%)
CIE-LAB	lab(25.93, 29.61, -51.36)
CIE-LCH	lch(25.93, 59.28, 299.96°)
OKLab	oklab(37.36% 0.0143 -0.1481)
OKLCH	oklch(37.36% 0.149 275.5)
XYZ	xyz(7.0767, 4.7234, 25.7329)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F318D #8D8B2F

analogous

#2F608D #2F318D #5C2F8D

triadic

#2F318D #8D2F31 #318D2F

tetradic

#2F318D #8D2F60 #8D8B2F #2F8D5C

square

#2F318D #8D2F60 #8D8B2F #2F8D5C

split-complementary

#2F318D #8D5C2F #608D2F

monochromatic

#101131 #20215F #2F318D #3E41BB #696BCD

Accessibility & contrast

On white

10.80

#2F318D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2F318D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F318D

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F318D	#FFFFFF	#000000	##FFFFFF
##2F318D	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004290

Deuteranopia (green-blind)

#00398B

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f318d;
/* rgb */ color: rgb(47, 49, 141);
/* oklch */ color: oklch(37.4% 0.149 275.5);

Tailwind

colors: {
  custom: {
    50: '#7469af',
    500: '#2f318d',
    950: '#000000',
  },
}

SCSS

$custom: #2f318d;
$custom-light: #7469af;
$custom-dark: #000000;

JSON

{
  "hex": "#2f318d",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 141
  },
  "hsl": {
    "h": 238.723,
    "s": 50,
    "l": 36.863
  },
  "oklch": {
    "l": 0.37358,
    "c": 0.14876,
    "h": 275.5
  },
  "luminance": 0.04724
}

Semantic roles & 50–950 ramp

primary

#2F318D

secondary

#B4B264

accent

#D74EDA

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F318D

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

Preview Lab → · Contrast checker → · Palette generator →