#4133B8#4133B8

#4133B8 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 43.1% C 0.198 H 278.8°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#4133B8
RGB	rgb(65, 51, 184)
HSL	hsl(246, 57%, 46%)
HSV	hsv(246, 72%, 72%)
CMYK	cmyk(64.7%, 72.3%, 0%, 27.8%)
CIE-LAB	lab(31.70, 45.34, -67.89)
CIE-LCH	lch(31.70, 81.63, 303.74°)
OKLab	oklab(43.07% 0.0302 -0.196)
OKLCH	oklch(43.07% 0.198 278.8)
XYZ	xyz(12.0128, 6.9512, 46.0468)
Luminance	0.0695 (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

#4133B8 #AAB833

analogous

#3367B8 #4133B8 #8333B8

triadic

#4133B8 #B84133 #33B841

tetradic

#4133B8 #B83367 #AAB833 #33B883

square

#4133B8 #B83367 #AAB833 #33B883

split-complementary

#4133B8 #B88333 #67B833

monochromatic

#1F1858 #302688 #4133B8 #6458D1 #9188DE

Accessibility & contrast

On white

8.79

#4133B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#4133B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4133B8

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4133B8	#FFFFFF	#000000	##FFFFFF
##4133B8	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BC

Deuteranopia (green-blind)

#0045B6

Tritanopia (blue-blind)

#005872

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4133b8;
/* rgb */ color: rgb(65, 51, 184);
/* oklch */ color: oklch(43.1% 0.198 278.8);

Tailwind

colors: {
  custom: {
    50: '#856dce',
    500: '#4133b8',
    950: '#000000',
  },
}

SCSS

$custom: #4133b8;
$custom-light: #856dce;
$custom-dark: #000000;

JSON

{
  "hex": "#4133b8",
  "rgb": {
    "r": 65,
    "g": 51,
    "b": 184
  },
  "hsl": {
    "h": 246.316,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43073,
    "c": 0.19827,
    "h": 278.8
  },
  "luminance": 0.06952
}

Semantic roles & 50–950 ramp

primary

#4133B8

secondary

#C0C87F

accent

#E048D0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4133B8

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

Preview Lab → · Contrast checker → · Palette generator →