#4133AB#4133AB

#4133AB is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.8% C 0.182 H 280.3°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#4133AB
RGB	rgb(65, 51, 171)
HSL	hsl(247, 54%, 44%)
HSV	hsv(247, 70%, 67%)
CMYK	cmyk(62%, 70.2%, 0%, 32.9%)
CIE-LAB	lab(30.47, 41.20, -62.15)
CIE-LCH	lch(30.47, 74.56, 303.54°)
OKLab	oklab(41.83% 0.0326 -0.1792)
OKLCH	oklch(41.83% 0.182 280.3)
XYZ	xyz(10.7122, 6.4310, 39.1970)
Luminance	0.0643 (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

#4133AB #9DAB33

analogous

#3361AB #4133AB #7D33AB

triadic

#4133AB #AB4133 #33AB41

tetradic

#4133AB #AB3361 #9DAB33 #33AB7D

square

#4133AB #AB3361 #9DAB33 #33AB7D

split-complementary

#4133AB #AB7D33 #61AB33

monochromatic

#1D174D #2F257C #4133AB #5F50CB #8A7FD9

Accessibility & contrast

On white

9.18

#4133AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#4133AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4133AB

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4133AB	#FFFFFF	#000000	##FFFFFF
##4133AB	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CAF

Deuteranopia (green-blind)

#0043A9

Tritanopia (blue-blind)

#00536B

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #4133ab;
/* rgb */ color: rgb(65, 51, 171);
/* oklch */ color: oklch(41.8% 0.182 280.3);

Tailwind

colors: {
  custom: {
    50: '#826cc5',
    500: '#4133ab',
    950: '#000000',
  },
}

SCSS

$custom: #4133ab;
$custom-light: #826cc5;
$custom-dark: #000000;

JSON

{
  "hex": "#4133ab",
  "rgb": {
    "r": 65,
    "g": 51,
    "b": 171
  },
  "hsl": {
    "h": 247,
    "s": 54.054,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4183,
    "c": 0.1821,
    "h": 280.3
  },
  "luminance": 0.06432
}

Semantic roles & 50–950 ramp

primary

#4133AB

secondary

#B9C278

accent

#DD4ACC

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4133AB

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

Preview Lab → · Contrast checker → · Palette generator →