#4233B7#4233B7

#4233B7 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 43.1% C 0.197 H 279.3°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#4233B7
RGB	rgb(66, 51, 183)
HSL	hsl(247, 56%, 46%)
HSV	hsv(247, 72%, 72%)
CMYK	cmyk(63.9%, 72.1%, 0%, 28.2%)
CIE-LAB	lab(31.68, 45.15, -67.32)
CIE-LCH	lch(31.68, 81.06, 303.85°)
OKLab	oklab(43.05% 0.0318 -0.1943)
OKLCH	oklch(43.05% 0.197 279.3)
XYZ	xyz(11.9751, 6.9439, 45.4998)
Luminance	0.0694 (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

#4233B7 #A8B733

analogous

#3366B7 #4233B7 #8433B7

triadic

#4233B7 #B74233 #33B742

tetradic

#4233B7 #B73366 #A8B733 #33B784

square

#4233B7 #B73366 #A8B733 #33B784

split-complementary

#4233B7 #B78433 #66B733

monochromatic

#1F1857 #312687 #4233B7 #6557D0 #9187DE

Accessibility & contrast

On white

8.79

#4233B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#4233B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233B7

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233B7	#FFFFFF	#000000	##FFFFFF
##4233B7	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)

#0050BB

Deuteranopia (green-blind)

#0045B5

Tritanopia (blue-blind)

#005772

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4233b7;
/* rgb */ color: rgb(66, 51, 183);
/* oklch */ color: oklch(43.1% 0.197 279.3);

Tailwind

colors: {
  custom: {
    50: '#856dce',
    500: '#4233b7',
    950: '#000000',
  },
}

SCSS

$custom: #4233b7;
$custom-light: #856dce;
$custom-dark: #000000;

JSON

{
  "hex": "#4233b7",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 183
  },
  "hsl": {
    "h": 246.818,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43052,
    "c": 0.19685,
    "h": 279.3
  },
  "luminance": 0.06945
}

Semantic roles & 50–950 ramp

primary

#4233B7

secondary

#BFC77F

accent

#E048CE

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4233B7

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

Preview Lab → · Contrast checker → · Palette generator →