#423DAF#423DAF

#423DAF is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.9% C 0.175 H 278.3°. Best body text is #FFFFFF at 8.34:1 contrast (WCAG AA passes).

Color values

HEX	#423DAF
RGB	rgb(66, 61, 175)
HSL	hsl(243, 48%, 46%)
HSV	hsv(243, 65%, 69%)
CMYK	cmyk(62.3%, 65.1%, 0%, 31.4%)
CIE-LAB	lab(33.11, 36.68, -60.21)
CIE-LCH	lch(33.11, 70.50, 301.35°)
OKLab	oklab(43.86% 0.0253 -0.1735)
OKLCH	oklch(43.86% 0.175 278.3)
XYZ	xyz(11.6509, 7.5900, 41.4002)
Luminance	0.0759 (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

#423DAF #AAAF3D

analogous

#3D71AF #423DAF #7B3DAF

triadic

#423DAF #AF423D #3DAF42

tetradic

#423DAF #AF3D71 #AAAF3D #3DAF7B

square

#423DAF #AF3D71 #AAAF3D #3DAF7B

split-complementary

#423DAF #AF7B3D #71AF3D

monochromatic

#201D54 #312D82 #423DAF #6661C8 #928FD8

Accessibility & contrast

On white

8.34

#423DAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#423DAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DAF

8.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DAF	#FFFFFF	#000000	##FFFFFF
##423DAF	1.00	8.34	2.52	8.34
#FFFFFF	8.34	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B3

Deuteranopia (green-blind)

#0049AD

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #423daf;
/* rgb */ color: rgb(66, 61, 175);
/* oklch */ color: oklch(43.9% 0.175 278.3);

Tailwind

colors: {
  custom: {
    50: '#8373c8',
    500: '#423daf',
    950: '#000000',
  },
}

SCSS

$custom: #423daf;
$custom-light: #8373c8;
$custom-dark: #000000;

JSON

{
  "hex": "#423daf",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 175
  },
  "hsl": {
    "h": 242.632,
    "s": 48.305,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43865,
    "c": 0.17529,
    "h": 278.3
  },
  "luminance": 0.07591
}

Semantic roles & 50–950 ramp

primary

#423DAF

secondary

#C0C385

accent

#D850D2

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #423DAF

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

Preview Lab → · Contrast checker → · Palette generator →