#403243
Closest named color: Onyx (#343A40). oklch(33.9% 0.035 320.3), rgb(64, 50, 67).
Aa
White text reads best on this color (11.96:1).
About this color
#403243 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.035 and its hue 320°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.034 away. White text reads best on it, at 11.96:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.035) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.75:1 |
| White text | 11.96:1 |
Values
| HEX | #403243 |
| RGB | rgb(64, 50, 67) |
| HSL | hsl(289, 15%, 23%) |
| OKLCH | oklch(33.9% 0.035 320.3) |
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 #403243 | 11.96:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #403243 | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #403243 text on white | 11.96:1 | AAA | Lc 97.4 | Preferred for body text |
| #403243 text on black | 1.75:1 | 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
#DED6DF
oklch(88.5% 0.015 322.3)
-
Step 300
300
#C8BBCB
oklch(80.8% 0.026 319.9)
-
Step 400
400
#AD99B1
oklch(70.8% 0.041 320.6)
-
Step 500
500
#987F9E
oklch(63% 0.054 319.7)
-
Step 600
600
#836889
oklch(55.5% 0.059 320.1)
-
Step 700
700
#6F5774
oklch(49.2% 0.054 320.5)
-
Step 800
800
#5A475E
oklch(42.6% 0.044 320.4)
-
Step 900
900 (this color)
#403243
oklch(33.9% 0.035 320.3)
-
Step 950
950
#2B232D
oklch(26.9% 0.022 319.5)
#403243 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) | #303644 | 0.029 |
| Deuteranopia (no green cones) | #333742 | 0.027 |
| Tritanopia (no blue cones) | #403438 | 0.023 |
| Achromatopsia (no color) | #373737 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403243
#403243
oklch(33.9% 0.035 320.3)
- #2E3C2B
#2E3C2B
oklch(33.8% 0.034 140.1)
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 #403243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.034
- Gunmetal #293241 ΔE 0.040
- Space Cadet #2B2D42 ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.062
- Charcoal #264653 ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.069
Use #403243 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.