#4133BC#4133BC

#4133BC is a dark, highly saturated blue. Relative luminance 0.071; OKLCH L 43.5% C 0.203 H 278.3°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#4133BC
RGB	rgb(65, 51, 188)
HSL	hsl(246, 57%, 47%)
HSV	hsv(246, 73%, 74%)
CMYK	cmyk(65.4%, 72.9%, 0%, 26.3%)
CIE-LAB	lab(32.08, 46.60, -69.62)
CIE-LCH	lch(32.08, 83.78, 303.80°)
OKLab	oklab(43.46% 0.0295 -0.201)
OKLCH	oklch(43.46% 0.203 278.3)
XYZ	xyz(12.4380, 7.1213, 48.2863)
Luminance	0.0712 (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

#4133BC #AEBC33

analogous

#336ABC #4133BC #8533BC

triadic

#4133BC #BC4133 #33BC41

tetradic

#4133BC #BC336A #AEBC33 #33BC85

square

#4133BC #BC336A #AEBC33 #33BC85

split-complementary

#4133BC #BC8533 #6ABC33

monochromatic

#20195C #30268C #4133BC #665AD2 #938ADF

Accessibility & contrast

On white

8.66

#4133BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#4133BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4133BC

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4133BC	#FFFFFF	#000000	##FFFFFF
##4133BC	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051C0

Deuteranopia (green-blind)

#0046B9

Tritanopia (blue-blind)

#005974

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4133bc;
/* rgb */ color: rgb(65, 51, 188);
/* oklch */ color: oklch(43.5% 0.203 278.3);

Tailwind

colors: {
  custom: {
    50: '#856dd1',
    500: '#4133bc',
    950: '#000000',
  },
}

SCSS

$custom: #4133bc;
$custom-light: #856dd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4133bc",
  "rgb": {
    "r": 65,
    "g": 51,
    "b": 188
  },
  "hsl": {
    "h": 246.131,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43464,
    "c": 0.20316,
    "h": 278.3
  },
  "luminance": 0.07122
}

Semantic roles & 50–950 ramp

primary

#4133BC

secondary

#C2C981

accent

#E147D1

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0D0714

muted

#7D7A83

Preview Lab

Preview with #4133BC

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

Preview Lab → · Contrast checker → · Palette generator →