#4133B1#4133B1

#4133B1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.4% C 0.190 H 279.6°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#4133B1
RGB	rgb(65, 51, 177)
HSL	hsl(247, 55%, 45%)
HSV	hsv(247, 71%, 69%)
CMYK	cmyk(63.3%, 71.2%, 0%, 30.6%)
CIE-LAB	lab(31.03, 43.11, -64.82)
CIE-LCH	lch(31.03, 77.85, 303.63°)
OKLab	oklab(42.4% 0.0316 -0.187)
OKLCH	oklch(42.4% 0.19 279.6)
XYZ	xyz(11.2971, 6.6649, 42.2776)
Luminance	0.0667 (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

#4133B1 #A3B133

analogous

#3364B1 #4133B1 #8033B1

triadic

#4133B1 #B14133 #33B141

tetradic

#4133B1 #B13364 #A3B133 #33B180

square

#4133B1 #B13364 #A3B133 #33B180

split-complementary

#4133B1 #B18033 #64B133

monochromatic

#1E1852 #302581 #4133B1 #6154CE #8D83DB

Accessibility & contrast

On white

9.00

#4133B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#4133B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4133B1

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4133B1	#FFFFFF	#000000	##FFFFFF
##4133B1	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB5

Deuteranopia (green-blind)

#0044AF

Tritanopia (blue-blind)

#00556E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4133b1;
/* rgb */ color: rgb(65, 51, 177);
/* oklch */ color: oklch(42.4% 0.190 279.6);

Tailwind

colors: {
  custom: {
    50: '#836cc9',
    500: '#4133b1',
    950: '#000000',
  },
}

SCSS

$custom: #4133b1;
$custom-light: #836cc9;
$custom-dark: #000000;

JSON

{
  "hex": "#4133b1",
  "rgb": {
    "r": 65,
    "g": 51,
    "b": 177
  },
  "hsl": {
    "h": 246.667,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42398,
    "c": 0.18962,
    "h": 279.6
  },
  "luminance": 0.06666
}

Semantic roles & 50–950 ramp

primary

#4133B1

secondary

#BDC57B

accent

#DF49CE

background

#F8F6FC

surface

#F0EBF8

border

#CBC6D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4133B1

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

Preview Lab → · Contrast checker → · Palette generator →