#4233B8#4233B8

#4233B8 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 43.1% C 0.198 H 279.2°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#4233B8
RGB	rgb(66, 51, 184)
HSL	hsl(247, 57%, 46%)
HSV	hsv(247, 72%, 72%)
CMYK	cmyk(64.1%, 72.3%, 0%, 27.8%)
CIE-LAB	lab(31.77, 45.46, -67.76)
CIE-LCH	lch(31.77, 81.60, 303.86°)
OKLab	oklab(43.15% 0.0316 -0.1955)
OKLCH	oklch(43.15% 0.198 279.2)
XYZ	xyz(12.0796, 6.9856, 46.0499)
Luminance	0.0699 (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

#4233B8 #A9B833

analogous

#3366B8 #4233B8 #8433B8

triadic

#4233B8 #B84233 #33B842

tetradic

#4233B8 #B83366 #A9B833 #33B884

square

#4233B8 #B83366 #A9B833 #33B884

split-complementary

#4233B8 #B88433 #66B833

monochromatic

#201858 #312688 #4233B8 #6558D1 #9188DE

Accessibility & contrast

On white

8.76

#4233B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#4233B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233B8

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233B8	#FFFFFF	#000000	##FFFFFF
##4233B8	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	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: #4233b8;
/* rgb */ color: rgb(66, 51, 184);
/* oklch */ color: oklch(43.1% 0.198 279.2);

Tailwind

colors: {
  custom: {
    50: '#856dce',
    500: '#4233b8',
    950: '#000000',
  },
}

SCSS

$custom: #4233b8;
$custom-light: #856dce;
$custom-dark: #000000;

JSON

{
  "hex": "#4233b8",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 184
  },
  "hsl": {
    "h": 246.767,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43149,
    "c": 0.19808,
    "h": 279.2
  },
  "luminance": 0.06987
}

Semantic roles & 50–950 ramp

primary

#4233B8

secondary

#C0C87F

accent

#E048CF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4233B8

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

Preview Lab → · Contrast checker → · Palette generator →