#423D6B#423D6B

#423D6B is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.7% C 0.077 H 287.2°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#423D6B
RGB	rgb(66, 61, 107)
HSL	hsl(247, 27%, 33%)
HSV	hsv(247, 43%, 42%)
CMYK	cmyk(38.3%, 43%, 0%, 58%)
CIE-LAB	lab(28.27, 14.38, -26.12)
CIE-LCH	lch(28.27, 29.82, 298.84°)
OKLab	oklab(38.72% 0.0228 -0.0734)
OKLCH	oklch(38.72% 0.077 287.2)
XYZ	xyz(6.5686, 5.5571, 14.6336)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423D6B #666B3D

analogous

#3D4F6B #423D6B #593D6B

triadic

#423D6B #6B423D #3D6B42

tetradic

#423D6B #6B3D4F #666B3D #3D6B59

square

#423D6B #6B3D4F #666B3D #3D6B59

split-complementary

#423D6B #6B593D #4F6B3D

monochromatic

#12111D #2A2744 #423D6B #5A5392 #7A73AF

Accessibility & contrast

On white

9.95

#423D6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#423D6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423D6B

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423D6B	#FFFFFF	#000000	##FFFFFF
##423D6B	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E446D

Deuteranopia (green-blind)

#2D416A

Tritanopia (blue-blind)

#37464F

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #423d6b;
/* rgb */ color: rgb(66, 61, 107);
/* oklch */ color: oklch(38.7% 0.077 287.2);

Tailwind

colors: {
  custom: {
    50: '#787295',
    500: '#423d6b',
    950: '#000000',
  },
}

SCSS

$custom: #423d6b;
$custom-light: #787295;
$custom-dark: #000000;

JSON

{
  "hex": "#423d6b",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 107
  },
  "hsl": {
    "h": 246.522,
    "s": 27.381,
    "l": 32.941
  },
  "oklch": {
    "l": 0.38723,
    "c": 0.07684,
    "h": 287.2
  },
  "luminance": 0.05557
}

Semantic roles & 50–950 ramp

primary

#423D6B

secondary

#959A6A

accent

#C464B9

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09080D

muted

#7B7B7E

Preview Lab

Preview with #423D6B

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

Preview Lab → · Contrast checker → · Palette generator →