#342F8F#342F8F

#342F8F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.6% C 0.153 H 278.4°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#342F8F
RGB	rgb(52, 47, 143)
HSL	hsl(243, 51%, 37%)
HSV	hsv(243, 67%, 56%)
CMYK	cmyk(63.6%, 67.1%, 0%, 43.9%)
CIE-LAB	lab(26.00, 32.37, -52.47)
CIE-LCH	lch(26.00, 61.65, 301.67°)
OKLab	oklab(37.56% 0.0223 -0.1512)
OKLCH	oklch(37.56% 0.153 278.4)
XYZ	xyz(7.3890, 4.7457, 26.5079)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#342F8F #8A8F2F

analogous

#2F5A8F #342F8F #642F8F

triadic

#342F8F #8F342F #2F8F34

tetradic

#342F8F #8F2F5A #8A8F2F #2F8F64

square

#342F8F #8F2F5A #8A8F2F #2F8F64

split-complementary

#342F8F #8F642F #5A8F2F

monochromatic

#131133 #232061 #342F8F #453EBD #6F6ACE

Accessibility & contrast

On white

10.77

#342F8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#342F8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #342F8F

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##342F8F	#FFFFFF	#000000	##FFFFFF
##342F8F	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004192

Deuteranopia (green-blind)

#003A8D

Tritanopia (blue-blind)

#00485A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #342f8f;
/* rgb */ color: rgb(52, 47, 143);
/* oklch */ color: oklch(37.6% 0.153 278.4);

Tailwind

colors: {
  custom: {
    50: '#7768b1',
    500: '#342f8f',
    950: '#000000',
  },
}

SCSS

$custom: #342f8f;
$custom-light: #7768b1;
$custom-dark: #000000;

JSON

{
  "hex": "#342f8f",
  "rgb": {
    "r": 52,
    "g": 47,
    "b": 143
  },
  "hsl": {
    "h": 243.125,
    "s": 50.526,
    "l": 37.255
  },
  "oklch": {
    "l": 0.37557,
    "c": 0.15285,
    "h": 278.4
  },
  "luminance": 0.04746
}

Semantic roles & 50–950 ramp

primary

#342F8F

secondary

#B1B565

accent

#DA4ED3

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #342F8F

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

Preview Lab → · Contrast checker → · Palette generator →