#4034BB#4034BB

#4034BB is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.4% C 0.201 H 277.9°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#4034BB
RGB	rgb(64, 52, 187)
HSL	hsl(245, 56%, 47%)
HSV	hsv(245, 72%, 73%)
CMYK	cmyk(65.8%, 72.2%, 0%, 26.7%)
CIE-LAB	lab(32.11, 45.61, -68.99)
CIE-LCH	lch(32.11, 82.70, 303.47°)
OKLab	oklab(43.43% 0.0277 -0.1992)
OKLCH	oklch(43.43% 0.201 277.9)
XYZ	xyz(12.3091, 7.1328, 47.7322)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4034BB #AFBB34

analogous

#346CBB #4034BB #8334BB

triadic

#4034BB #BB4034 #34BB40

tetradic

#4034BB #BB346C #AFBB34 #34BB83

square

#4034BB #BB346C #AFBB34 #34BB83

split-complementary

#4034BB #BB8334 #6CBB34

monochromatic

#1F195B #30278B #4034BB #655BD1 #928BDF

Accessibility & contrast

On white

8.65

#4034BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#4034BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4034BB

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4034BB	#FFFFFF	#000000	##FFFFFF
##4034BB	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BF

Deuteranopia (green-blind)

#0046B9

Tritanopia (blue-blind)

#005A74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #4034bb;
/* rgb */ color: rgb(64, 52, 187);
/* oklch */ color: oklch(43.4% 0.201 277.9);

Tailwind

colors: {
  custom: {
    50: '#856dd1',
    500: '#4034bb',
    950: '#000000',
  },
}

SCSS

$custom: #4034bb;
$custom-light: #856dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4034bb",
  "rgb": {
    "r": 64,
    "g": 52,
    "b": 187
  },
  "hsl": {
    "h": 245.333,
    "s": 56.485,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43434,
    "c": 0.20111,
    "h": 277.9
  },
  "luminance": 0.07134
}

Semantic roles & 50–950 ramp

primary

#4034BB

secondary

#C3C982

accent

#E048D2

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #4034BB

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

Preview Lab → · Contrast checker → · Palette generator →