#2F348B#2F348B

#2F348B is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.7% C 0.142 H 274.8°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#2F348B
RGB	rgb(47, 52, 139)
HSL	hsl(237, 49%, 36%)
HSV	hsv(237, 66%, 55%)
CMYK	cmyk(66.2%, 62.6%, 0%, 45.5%)
CIE-LAB	lab(26.52, 26.91, -49.16)
CIE-LCH	lch(26.52, 56.05, 298.69°)
OKLab	oklab(37.73% 0.0118 -0.1416)
OKLCH	oklch(37.73% 0.142 274.8)
XYZ	xyz(7.0589, 4.9238, 24.9995)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F348B #8B862F

analogous

#2F628B #2F348B #582F8B

triadic

#2F348B #8B2F34 #348B2F

tetradic

#2F348B #8B2F62 #8B862F #2F8B58

square

#2F348B #8B2F62 #8B862F #2F8B58

split-complementary

#2F348B #8B582F #628B2F

monochromatic

#101230 #20235D #2F348B #3E45B9 #686ECC

Accessibility & contrast

On white

10.58

#2F348B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#2F348B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F348B

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F348B	#FFFFFF	#000000	##FFFFFF
##2F348B	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438E

Deuteranopia (green-blind)

#003B89

Tritanopia (blue-blind)

#004A5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #2f348b;
/* rgb */ color: rgb(47, 52, 139);
/* oklch */ color: oklch(37.7% 0.142 274.8);

Tailwind

colors: {
  custom: {
    50: '#736bae',
    500: '#2f348b',
    950: '#000000',
  },
}

SCSS

$custom: #2f348b;
$custom-light: #736bae;
$custom-dark: #000000;

JSON

{
  "hex": "#2f348b",
  "rgb": {
    "r": 47,
    "g": 52,
    "b": 139
  },
  "hsl": {
    "h": 236.739,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.37734,
    "c": 0.1421,
    "h": 274.8
  },
  "luminance": 0.04924
}

Semantic roles & 50–950 ramp

primary

#2F348B

secondary

#B3AF63

accent

#D14FD9

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #2F348B

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

Preview Lab → · Contrast checker → · Palette generator →