#423447
Closest named color: Onyx (#343A40). oklch(34.8% 0.037 317.1), rgb(66, 52, 71).
Aa
White text reads best on this color (11.57:1).
About this color
#423447 is a dark, muted purple. In OKLCH its lightness is 35%, its chroma 0.037 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.035 away. White text reads best on it, at 11.57:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.81:1 |
| White text | 11.57:1 |
Values
| HEX | #423447 |
| RGB | rgb(66, 52, 71) |
| HSL | hsl(284, 15%, 24%) |
| OKLCH | oklch(34.8% 0.037 317.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #423447 | 11.57:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #423447 | 1.81:1 | Fails | Lc 0.0 | Not readable |
| #423447 text on white | 11.57:1 | AAA | Lc 96.6 | Preferred for body text |
| #423447 text on black | 1.81:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#ECE8ED
oklch(93.6% 0.008 319.4)
-
Step 200
200
#DDD6E0
oklch(88.5% 0.015 316)
-
Step 300
300
#C8BBCD
oklch(80.8% 0.029 316.7)
-
Step 400
400
#AC98B3
oklch(70.6% 0.045 317.3)
-
Step 500
500
#987FA1
oklch(63.1% 0.058 317.1)
-
Step 600
600
#82688C
oklch(55.6% 0.063 316.5)
-
Step 700
700
#6E5677
oklch(49% 0.059 316.7)
-
Step 800
800
#5A4761
oklch(42.8% 0.048 316.8)
-
Step 900
900 (this color)
#423447
oklch(34.8% 0.037 317.1)
-
Step 950
950
#2B232E
oklch(27% 0.023 316.8)
#423447 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #323848 | 0.029 |
| Deuteranopia (no green cones) | #353946 | 0.027 |
| Tritanopia (no blue cones) | #42363B | 0.024 |
| Achromatopsia (no color) | #393939 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423447
#423447
oklch(34.8% 0.037 317.1)
- #313F2B
#313F2B
oklch(34.9% 0.038 136.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #423447, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.046
- Gunmetal #293241 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.062
- Dark Grey Blue #29465B ΔE 0.064
- Charcoal #264653 ΔE 0.064
Use #423447 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.