#403128
Closest named color: Onyx (#343A40). oklch(32.7% 0.027 52.5), rgb(64, 49, 40).
Aa
White text reads best on this color (12.44:1).
About this color
#403128 is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.044 away. White text reads best on it, at 12.44:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.68:1 |
| White text | 12.44:1 |
Values
| HEX | #403128 |
| RGB | rgb(64, 49, 40) |
| HSL | hsl(23, 23%, 20%) |
| OKLCH | oklch(32.7% 0.027 52.5) |
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 #403128 | 12.44:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #403128 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #403128 text on white | 12.44:1 | AAA | Lc 98.3 | Preferred for body text |
| #403128 text on black | 1.68:1 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E6
oklch(93.6% 0.006 59.6)
-
Step 200
200
#DFD7D2
oklch(88.4% 0.011 54.5)
-
Step 300
300
#CCBDB5
oklch(80.9% 0.02 50.1)
-
Step 400
400
#B29C8F
oklch(70.9% 0.032 52.5)
-
Step 500
500
#9E8373
oklch(63.1% 0.041 52.4)
-
Step 600
600
#896C5B
oklch(55.5% 0.045 51.9)
-
Step 700
700
#745A4B
oklch(49% 0.041 51.4)
-
Step 800
800
#5F4A3E
oklch(42.8% 0.035 51.2)
-
Step 900
900 (this color)
#403128
oklch(32.7% 0.027 52.5)
-
Step 950
950
#2D241F
oklch(26.9% 0.016 50.7)
#403128 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) | #353227 | 0.021 |
| Deuteranopia (no green cones) | #393528 | 0.018 |
| Tritanopia (no blue cones) | #442E2F | 0.019 |
| Achromatopsia (no color) | #343434 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403128
#403128
oklch(32.7% 0.027 52.5)
- #273740
#273740
oklch(32.7% 0.026 233.3)
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 #403128, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.055
- Pakistan Green #283618 ΔE 0.056
- Gunmetal #293241 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.063
- Dark Olive #373E02 ΔE 0.073
- Chocolate Brown #411900 ΔE 0.073
- Dark Blue Grey #1F3B4D ΔE 0.074
Use #403128 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.