#423AA1#423AA1

#423AA1 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.160 H 280.5°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#423AA1
RGB	rgb(66, 58, 161)
HSL	hsl(245, 47%, 43%)
HSV	hsv(245, 64%, 63%)
CMYK	cmyk(59%, 64%, 0%, 36.9%)
CIE-LAB	lab(31.25, 33.88, -54.86)
CIE-LCH	lch(31.25, 64.48, 301.70°)
OKLab	oklab(42.14% 0.0292 -0.1577)
OKLCH	oklch(42.14% 0.16 280.5)
XYZ	xyz(10.1908, 6.7569, 34.4785)
Luminance	0.0676 (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

#423AA1 #99A13A

analogous

#3A65A1 #423AA1 #753AA1

triadic

#423AA1 #A1423A #3AA142

tetradic

#423AA1 #A13A65 #99A13A #3AA175

square

#423AA1 #A13A65 #99A13A #3AA175

split-complementary

#423AA1 #A1753A #65A13A

monochromatic

#1D1A47 #302A74 #423AA1 #5E56C2 #8983D2

Accessibility & contrast

On white

8.93

#423AA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#423AA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423AA1

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423AA1	#FFFFFF	#000000	##FFFFFF
##423AA1	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA4

Deuteranopia (green-blind)

#00469F

Tritanopia (blue-blind)

#055468

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #423aa1;
/* rgb */ color: rgb(66, 58, 161);
/* oklch */ color: oklch(42.1% 0.160 280.5);

Tailwind

colors: {
  custom: {
    50: '#8071be',
    500: '#423aa1',
    950: '#000000',
  },
}

SCSS

$custom: #423aa1;
$custom-light: #8071be;
$custom-dark: #000000;

JSON

{
  "hex": "#423aa1",
  "rgb": {
    "r": 66,
    "g": 58,
    "b": 161
  },
  "hsl": {
    "h": 244.66,
    "s": 47.032,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42141,
    "c": 0.16043,
    "h": 280.5
  },
  "luminance": 0.06758
}

Semantic roles & 50–950 ramp

primary

#423AA1

secondary

#B7BC7B

accent

#D751CC

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #423AA1

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

Preview Lab → · Contrast checker → · Palette generator →