#2F3387#2F3387

#2F3387 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.138 H 275.4°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#2F3387
RGB	rgb(47, 51, 135)
HSL	hsl(237, 48%, 36%)
HSV	hsv(237, 65%, 53%)
CMYK	cmyk(65.2%, 62.2%, 0%, 47.1%)
CIE-LAB	lab(25.92, 26.13, -47.64)
CIE-LCH	lch(25.92, 54.33, 298.74°)
OKLab	oklab(37.19% 0.0129 -0.1371)
OKLCH	oklch(37.19% 0.138 275.4)
XYZ	xyz(6.7279, 4.7207, 23.4736)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3387 #87832F

analogous

#2F5F87 #2F3387 #572F87

triadic

#2F3387 #872F33 #33872F

tetradic

#2F3387 #872F5F #87832F #2F8757

square

#2F3387 #872F5F #87832F #2F8757

split-complementary

#2F3387 #87572F #5F872F

monochromatic

#0F112C #1F225A #2F3387 #3F44B4 #666BCA

Accessibility & contrast

On white

10.80

#2F3387 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#2F3387 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3387

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3387	#FFFFFF	#000000	##FFFFFF
##2F3387	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)

#00418A

Deuteranopia (green-blind)

#003A85

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2f3387;
/* rgb */ color: rgb(47, 51, 135);
/* oklch */ color: oklch(37.2% 0.138 275.4);

Tailwind

colors: {
  custom: {
    50: '#726aab',
    500: '#2f3387',
    950: '#000000',
  },
}

SCSS

$custom: #2f3387;
$custom-light: #726aab;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3387",
  "rgb": {
    "r": 47,
    "g": 51,
    "b": 135
  },
  "hsl": {
    "h": 237.273,
    "s": 48.352,
    "l": 35.686
  },
  "oklch": {
    "l": 0.37192,
    "c": 0.13774,
    "h": 275.4
  },
  "luminance": 0.04721
}

Semantic roles & 50–950 ramp

primary

#2F3387

secondary

#B1AD61

accent

#D250D8

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F3387

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

Preview Lab → · Contrast checker → · Palette generator →