#4233B9#4233B9

#4233B9 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 43.2% C 0.199 H 279.1°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#4233B9
RGB	rgb(66, 51, 185)
HSL	hsl(247, 57%, 46%)
HSV	hsv(247, 72%, 73%)
CMYK	cmyk(64.3%, 72.4%, 0%, 27.5%)
CIE-LAB	lab(31.87, 45.78, -68.19)
CIE-LCH	lch(31.87, 82.13, 303.87°)
OKLab	oklab(43.25% 0.0314 -0.1968)
OKLCH	oklch(43.25% 0.199 279.1)
XYZ	xyz(12.1847, 7.0277, 46.6039)
Luminance	0.0703 (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

#4233B9 #AAB933

analogous

#3367B9 #4233B9 #8533B9

triadic

#4233B9 #B94233 #33B942

tetradic

#4233B9 #B93367 #AAB933 #33B985

square

#4233B9 #B93367 #AAB933 #33B985

split-complementary

#4233B9 #B98533 #67B933

monochromatic

#201959 #312689 #4233B9 #6658D1 #9288DE

Accessibility & contrast

On white

8.73

#4233B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#4233B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4233B9

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4233B9	#FFFFFF	#000000	##FFFFFF
##4233B9	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050BD

Deuteranopia (green-blind)

#0046B7

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #4233b9;
/* rgb */ color: rgb(66, 51, 185);
/* oklch */ color: oklch(43.2% 0.199 279.1);

Tailwind

colors: {
  custom: {
    50: '#856dcf',
    500: '#4233b9',
    950: '#000000',
  },
}

SCSS

$custom: #4233b9;
$custom-light: #856dcf;
$custom-dark: #000000;

JSON

{
  "hex": "#4233b9",
  "rgb": {
    "r": 66,
    "g": 51,
    "b": 185
  },
  "hsl": {
    "h": 246.716,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43246,
    "c": 0.1993,
    "h": 279.1
  },
  "luminance": 0.07029
}

Semantic roles & 50–950 ramp

primary

#4233B9

secondary

#C0C880

accent

#E048CF

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0714

muted

#7D7A82

Preview Lab

Preview with #4233B9

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

Preview Lab → · Contrast checker → · Palette generator →