#423CBF#423CBF

#423CBF is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.2% C 0.197 H 277.0°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#423CBF
RGB	rgb(66, 60, 191)
HSL	hsl(243, 52%, 49%)
HSV	hsv(243, 69%, 75%)
CMYK	cmyk(65.4%, 68.6%, 0%, 25.1%)
CIE-LAB	lab(34.29, 42.56, -67.74)
CIE-LCH	lch(34.29, 80.00, 302.14°)
OKLab	oklab(45.15% 0.0241 -0.1955)
OKLCH	oklch(45.15% 0.197 277)
XYZ	xyz(13.2635, 8.1504, 50.1543)
Luminance	0.0815 (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

#423CBF #B9BF3C

analogous

#3C78BF #423CBF #843CBF

triadic

#423CBF #BF423C #3CBF42

tetradic

#423CBF #BF3C78 #B9BF3C #3CBF84

square

#423CBF #BF3C78 #B9BF3C #3CBF84

split-complementary

#423CBF #BF843C #78BF3C

monochromatic

#221F62 #322D90 #423CBF #6D68D0 #9A97DE

Accessibility & contrast

On white

7.98

#423CBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#423CBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CBF

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CBF	#FFFFFF	#000000	##FFFFFF
##423CBF	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C3

Deuteranopia (green-blind)

#004BBD

Tritanopia (blue-blind)

#005F79

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423cbf;
/* rgb */ color: rgb(66, 60, 191);
/* oklch */ color: oklch(45.2% 0.197 277.0);

Tailwind

colors: {
  custom: {
    50: '#8673d3',
    500: '#423cbf',
    950: '#000000',
  },
}

SCSS

$custom: #423cbf;
$custom-light: #8673d3;
$custom-dark: #000000;

JSON

{
  "hex": "#423cbf",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 191
  },
  "hsl": {
    "h": 242.748,
    "s": 52.191,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45151,
    "c": 0.19701,
    "h": 277
  },
  "luminance": 0.08152
}

Semantic roles & 50–950 ramp

primary

#423CBF

secondary

#C7CA8D

accent

#DC4CD5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423CBF

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

Preview Lab → · Contrast checker → · Palette generator →