#423EB6#423EB6

#423EB6 is a dark, vivid blue. Relative luminance 0.080; OKLCH L 44.7% C 0.183 H 277.4°. Best body text is #FFFFFF at 8.09:1 contrast (WCAG AA passes).

Color values

HEX	#423EB6
RGB	rgb(66, 62, 182)
HSL	hsl(242, 49%, 48%)
HSV	hsv(242, 66%, 71%)
CMYK	cmyk(63.7%, 65.9%, 0%, 28.6%)
CIE-LAB	lab(33.94, 38.40, -63.02)
CIE-LCH	lch(33.94, 73.79, 301.35°)
OKLab	oklab(44.65% 0.0237 -0.1817)
OKLCH	oklch(44.65% 0.183 277.4)
XYZ	xyz(12.4102, 7.9799, 45.1332)
Luminance	0.0798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.05

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423EB6 #B2B63E

analogous

#3E76B6 #423EB6 #7E3EB6

triadic

#423EB6 #B6423E #3EB642

tetradic

#423EB6 #B63E76 #B2B63E #3EB67E

square

#423EB6 #B63E76 #B2B63E #3EB67E

split-complementary

#423EB6 #B67E3E #76B63E

monochromatic

#211F5B #312E88 #423EB6 #6A66CB #9694DB

Accessibility & contrast

On white

8.09

#423EB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#423EB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423EB6

8.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423EB6	#FFFFFF	#000000	##FFFFFF
##423EB6	1.00	8.09	2.60	8.09
#FFFFFF	8.09	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BA

Deuteranopia (green-blind)

#004BB4

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #423eb6;
/* rgb */ color: rgb(66, 62, 182);
/* oklch */ color: oklch(44.7% 0.183 277.4);

Tailwind

colors: {
  custom: {
    50: '#8474cd',
    500: '#423eb6',
    950: '#000000',
  },
}

SCSS

$custom: #423eb6;
$custom-light: #8474cd;
$custom-dark: #000000;

JSON

{
  "hex": "#423eb6",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 182
  },
  "hsl": {
    "h": 242,
    "s": 49.18,
    "l": 47.843
  },
  "oklch": {
    "l": 0.44651,
    "c": 0.18322,
    "h": 277.4
  },
  "luminance": 0.07981
}

Semantic roles & 50–950 ramp

primary

#423EB6

secondary

#C4C68A

accent

#D94FD4

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #423EB6

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

Preview Lab → · Contrast checker → · Palette generator →