#4230BB#4230BB

#4230BB is a dark, highly saturated blue. Relative luminance 0.069; OKLCH L 43.0% C 0.205 H 279.2°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#4230BB
RGB	rgb(66, 48, 187)
HSL	hsl(248, 59%, 46%)
HSV	hsv(248, 74%, 73%)
CMYK	cmyk(64.7%, 74.3%, 0%, 26.7%)
CIE-LAB	lab(31.48, 48.03, -70.01)
CIE-LCH	lch(31.48, 84.90, 304.45°)
OKLab	oklab(43.03% 0.0329 -0.2021)
OKLCH	oklch(43.03% 0.205 279.2)
XYZ	xyz(12.2705, 6.8590, 47.6814)
Luminance	0.0686 (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

#4230BB #A9BB30

analogous

#3063BB #4230BB #8730BB

triadic

#4230BB #BB4230 #30BB42

tetradic

#4230BB #BB3063 #A9BB30 #30BB87

square

#4230BB #BB3063 #A9BB30 #30BB87

split-complementary

#4230BB #BB8730 #63BB30

monochromatic

#20175A #31238A #4230BB #6555D3 #9186E0

Accessibility & contrast

On white

8.85

#4230BB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#4230BB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4230BB

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4230BB	#FFFFFF	#000000	##FFFFFF
##4230BB	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FBF

Deuteranopia (green-blind)

#0045B8

Tritanopia (blue-blind)

#005873

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #4230bb;
/* rgb */ color: rgb(66, 48, 187);
/* oklch */ color: oklch(43.0% 0.205 279.2);

Tailwind

colors: {
  custom: {
    50: '#866bd1',
    500: '#4230bb',
    950: '#000000',
  },
}

SCSS

$custom: #4230bb;
$custom-light: #866bd1;
$custom-dark: #000000;

JSON

{
  "hex": "#4230bb",
  "rgb": {
    "r": 66,
    "g": 48,
    "b": 187
  },
  "hsl": {
    "h": 247.77,
    "s": 59.149,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43031,
    "c": 0.20476,
    "h": 279.2
  },
  "luminance": 0.0686
}

Semantic roles & 50–950 ramp

primary

#4230BB

secondary

#C0C97D

accent

#E245CE

background

#F8F6FD

surface

#F0EBFA

border

#CBC6D3

text

#0D0714

muted

#7D7A83

Preview Lab

Preview with #4230BB

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

Preview Lab → · Contrast checker → · Palette generator →