#2F318B#2F318B

#2F318B is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.146 H 275.7°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#2F318B
RGB	rgb(47, 49, 139)
HSL	hsl(239, 49%, 36%)
HSV	hsv(239, 66%, 55%)
CMYK	cmyk(66.2%, 64.7%, 0%, 45.5%)
CIE-LAB	lab(25.76, 28.89, -50.40)
CIE-LCH	lch(25.76, 58.09, 299.82°)
OKLab	oklab(37.18% 0.0145 -0.1453)
OKLCH	oklch(37.18% 0.146 275.7)
XYZ	xyz(6.9293, 4.6645, 24.9563)
Luminance	0.0466 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F318B #8B892F

analogous

#2F5F8B #2F318B #5B2F8B

triadic

#2F318B #8B2F31 #318B2F

tetradic

#2F318B #8B2F5F #8B892F #2F8B5B

square

#2F318B #8B2F5F #8B892F #2F8B5B

split-complementary

#2F318B #8B5B2F #5F8B2F

monochromatic

#101130 #20215D #2F318B #3E41B9 #686BCC

Accessibility & contrast

On white

10.86

#2F318B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2F318B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F318B

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F318B	#FFFFFF	#000000	##FFFFFF
##2F318B	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418E

Deuteranopia (green-blind)

#003989

Tritanopia (blue-blind)

#004859

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f318b;
/* rgb */ color: rgb(47, 49, 139);
/* oklch */ color: oklch(37.2% 0.146 275.7);

Tailwind

colors: {
  custom: {
    50: '#7369ae',
    500: '#2f318b',
    950: '#000000',
  },
}

SCSS

$custom: #2f318b;
$custom-light: #7369ae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f318b",
  "rgb": {
    "r": 47,
    "g": 49,
    "b": 139
  },
  "hsl": {
    "h": 238.696,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37176,
    "c": 0.14599,
    "h": 275.7
  },
  "luminance": 0.04665
}

Semantic roles & 50–950 ramp

primary

#2F318B

secondary

#B3B163

accent

#D64FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F318B

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

Preview Lab → · Contrast checker → · Palette generator →