#34378E#34378E

#34378E is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.9% C 0.141 H 276.1°. Best body text is #FFFFFF at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#34378E
RGB	rgb(52, 55, 142)
HSL	hsl(238, 46%, 38%)
HSV	hsv(238, 63%, 56%)
CMYK	cmyk(63.4%, 61.3%, 0%, 44.3%)
CIE-LAB	lab(27.89, 26.84, -48.78)
CIE-LCH	lch(27.89, 55.67, 298.83°)
OKLab	oklab(38.91% 0.0151 -0.1403)
OKLCH	oklch(38.91% 0.141 276.1)
XYZ	xyz(7.6633, 5.4148, 26.2273)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#34378E #8E8B34

analogous

#34648E #34378E #5E348E

triadic

#34378E #8E3437 #378E34

tetradic

#34378E #8E3464 #8E8B34 #348E5E

square

#34378E #8E3464 #8E8B34 #348E5E

split-complementary

#34378E #8E5E34 #648E34

monochromatic

#131434 #242661 #34378E #4448BB #7174CB

Accessibility & contrast

On white

10.08

#34378E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#34378E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #34378E

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##34378E	#FFFFFF	#000000	##FFFFFF
##34378E	1.00	10.08	2.08	10.08
#FFFFFF	10.08	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004691

Deuteranopia (green-blind)

#003E8C

Tritanopia (blue-blind)

#004C5D

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #34378e;
/* rgb */ color: rgb(52, 55, 142);
/* oklch */ color: oklch(38.9% 0.141 276.1);

Tailwind

colors: {
  custom: {
    50: '#766eb0',
    500: '#34378e',
    950: '#000000',
  },
}

SCSS

$custom: #34378e;
$custom-light: #766eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#34378e",
  "rgb": {
    "r": 52,
    "g": 55,
    "b": 142
  },
  "hsl": {
    "h": 238,
    "s": 46.392,
    "l": 38.039
  },
  "oklch": {
    "l": 0.38913,
    "c": 0.14112,
    "h": 276.1
  },
  "luminance": 0.05415
}

Semantic roles & 50–950 ramp

primary

#34378E

secondary

#B3B16A

accent

#D252D6

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#090710

muted

#7B7A7F

Preview Lab

Preview with #34378E

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

Preview Lab → · Contrast checker → · Palette generator →