#4133B2#4133B2

#4133B2 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.5% C 0.191 H 279.5°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#4133B2
RGB	rgb(65, 51, 178)
HSL	hsl(247, 55%, 45%)
HSV	hsv(247, 71%, 70%)
CMYK	cmyk(63.5%, 71.3%, 0%, 30.2%)
CIE-LAB	lab(31.13, 43.43, -65.26)
CIE-LCH	lch(31.13, 78.39, 303.64°)
OKLab	oklab(42.49% 0.0314 -0.1883)
OKLCH	oklch(42.49% 0.191 279.5)
XYZ	xyz(11.3971, 6.7049, 42.8044)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 4.17

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4133B2 #A4B233

analogous

#3365B2 #4133B2 #8033B2

triadic

#4133B2 #B24133 #33B241

tetradic

#4133B2 #B23365 #A4B233 #33B280

square

#4133B2 #B23365 #A4B233 #33B280

split-complementary

#4133B2 #B28033 #65B233

monochromatic

#1E1853 #302582 #4133B2 #6254CE #8D84DC

Accessibility & contrast

On white

8.97

#4133B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#4133B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4133B2

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4133B2	#FFFFFF	#000000	##FFFFFF
##4133B2	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB6

Deuteranopia (green-blind)

#0044B0

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #4133b2;
/* rgb */ color: rgb(65, 51, 178);
/* oklch */ color: oklch(42.5% 0.191 279.5);

Tailwind

colors: {
  custom: {
    50: '#846cca',
    500: '#4133b2',
    950: '#000000',
  },
}

SCSS

$custom: #4133b2;
$custom-light: #846cca;
$custom-dark: #000000;

JSON

{
  "hex": "#4133b2",
  "rgb": {
    "r": 65,
    "g": 51,
    "b": 178
  },
  "hsl": {
    "h": 246.614,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42494,
    "c": 0.19088,
    "h": 279.5
  },
  "luminance": 0.06706
}

Semantic roles & 50–950 ramp

primary

#4133B2

secondary

#BDC57C

accent

#DF49CE

background

#F8F6FC

surface

#F0EBF9

border

#CBC6D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #4133B2

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

Preview Lab → · Contrast checker → · Palette generator →