#342F8B#342F8B

#342F8B is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.2% C 0.147 H 278.9°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#342F8B
RGB	rgb(52, 47, 139)
HSL	hsl(243, 49%, 36%)
HSV	hsv(243, 66%, 55%)
CMYK	cmyk(62.6%, 66.2%, 0%, 45.5%)
CIE-LAB	lab(25.64, 30.99, -50.57)
CIE-LCH	lch(25.64, 59.31, 301.50°)
OKLab	oklab(37.19% 0.0227 -0.1456)
OKLCH	oklch(37.19% 0.147 278.9)
XYZ	xyz(7.0914, 4.6266, 24.9404)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#342F8B #868B2F

analogous

#2F588B #342F8B #622F8B

triadic

#342F8B #8B342F #2F8B34

tetradic

#342F8B #8B2F58 #868B2F #2F8B62

square

#342F8B #8B2F58 #868B2F #2F8B62

split-complementary

#342F8B #8B622F #588B2F

monochromatic

#121030 #23205D #342F8B #453EB9 #6E68CC

Accessibility & contrast

On white

10.91

#342F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#342F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #342F8B

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##342F8B	#FFFFFF	#000000	##FFFFFF
##342F8B	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00408E

Deuteranopia (green-blind)

#003989

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #342f8b;
/* rgb */ color: rgb(52, 47, 139);
/* oklch */ color: oklch(37.2% 0.147 278.9);

Tailwind

colors: {
  custom: {
    50: '#7668ae',
    500: '#342f8b',
    950: '#000000',
  },
}

SCSS

$custom: #342f8b;
$custom-light: #7668ae;
$custom-dark: #000000;

JSON

{
  "hex": "#342f8b",
  "rgb": {
    "r": 52,
    "g": 47,
    "b": 139
  },
  "hsl": {
    "h": 243.261,
    "s": 49.462,
    "l": 36.471
  },
  "oklch": {
    "l": 0.3719,
    "c": 0.14739,
    "h": 278.9
  },
  "luminance": 0.04627
}

Semantic roles & 50–950 ramp

primary

#342F8B

secondary

#AFB363

accent

#D94FD1

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#090610

muted

#7B7A7F

Preview Lab

Preview with #342F8B

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

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