#423953
Closest named color: Onyx (#343A40). oklch(36.5% 0.045 300), rgb(66, 57, 83).
Aa
White text reads best on this color (10.81:1).
About this color
#423953 is a dark, muted purple. In OKLCH its lightness is 37%, its chroma 0.045 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.043 away. White text reads best on it, at 10.81:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.94:1 |
| White text | 10.81:1 |
Values
| HEX | #423953 |
| RGB | rgb(66, 57, 83) |
| HSL | hsl(261, 19%, 27%) |
| OKLCH | oklch(36.5% 0.045 300) |
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 #423953 | 10.81:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #423953 | 1.94:1 | Fails | Lc 8.9 | Not readable |
| #423953 text on white | 10.81:1 | AAA | Lc 95.0 | Preferred for body text |
| #423953 text on black | 1.94:1 | Fails | Lc -7.6 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#EBE8F0
oklch(93.6% 0.011 303.1)
-
Step 200
200
#DBD7E4
oklch(88.6% 0.018 300)
-
Step 300
300
#C4BCD4
oklch(80.9% 0.034 300.8)
-
Step 400
400
#A599BE
oklch(70.6% 0.055 299.8)
-
Step 500
500
#9080AE
oklch(63.1% 0.07 300.3)
-
Step 600
600
#7A6999
oklch(55.6% 0.075 300.2)
-
Step 700
700
#675783
oklch(49% 0.071 300.5)
-
Step 800
800
#54486A
oklch(42.8% 0.057 300.2)
-
Step 900
900 (this color)
#423953
oklch(36.5% 0.045 300)
-
Step 950
950
#282333
oklch(26.9% 0.03 298.7)
#423953 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) | #333D54 | 0.026 |
| Deuteranopia (no green cones) | #353D52 | 0.024 |
| Tritanopia (no blue cones) | #3F3D42 | 0.037 |
| Achromatopsia (no color) | #3D3D3D | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #423953
#423953
oklch(36.5% 0.045 300)
- #3B4226
#3B4226
oklch(36.5% 0.046 120.2)
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 #423953, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.054
- Charcoal #264653 ΔE 0.055
- Gunmetal #293241 ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.062
Use #423953 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.