#3D433B
Closest named color: Charcoal Grey (#3C4142). oklch(37.5% 0.016 137.8), rgb(61, 67, 59).
Aa
White text reads best on this color (10.17:1).
About this color
#3D433B is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.016 away. White text reads best on it, at 10.17:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.06:1 |
| White text | 10.17:1 |
Values
| HEX | #3D433B |
| RGB | rgb(61, 67, 59) |
| HSL | hsl(105, 6%, 25%) |
| OKLCH | oklch(37.5% 0.016 137.8) |
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 #3D433B | 10.17:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #3D433B | 2.06:1 | Fails | Lc 10.3 | Not readable |
| #3D433B text on white | 10.17:1 | AAA | Lc 93.6 | Preferred for body text |
| #3D433B text on black | 2.06:1 | Fails | Lc -8.9 | 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
#F5F6F5
oklch(97.2% 0.002 145.6)
-
Step 100
100
#E9EAE8
oklch(93.6% 0.003 128.5)
-
Step 200
200
#D7DAD6
oklch(88.5% 0.006 137.8)
-
Step 300
300
#BDC2BB
oklch(80.8% 0.011 136.6)
-
Step 400
400
#9BA498
oklch(70.8% 0.02 137.8)
-
Step 500
500
#838D7F
oklch(63.1% 0.024 136.6)
-
Step 600
600
#6C7768
oklch(55.5% 0.026 137.3)
-
Step 700
700
#5A6457
oklch(49.1% 0.024 138.5)
-
Step 800
800
#4A5247
oklch(42.8% 0.021 137.1)
-
Step 900
900 (this color)
#3D433B
oklch(37.5% 0.016 137.8)
-
Step 950
950
#242823
oklch(27.1% 0.011 139.4)
#3D433B 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) | #44423B | 0.012 |
| Deuteranopia (no green cones) | #43413B | 0.011 |
| Tritanopia (no blue cones) | #3D4241 | 0.012 |
| Achromatopsia (no color) | #414141 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D433B
#3D433B
oklch(37.5% 0.016 137.8)
- #443E46
#443E46
oklch(37.3% 0.016 317.7)
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 #3D433B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.016
- Onyx #343A40 ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.043
- Charcoal #264653 ΔE 0.046
- Dark Grey Blue #29465B ΔE 0.056
- Dark Teal #014D4E ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.063
- Dark Blue Green #005249 ΔE 0.063
Use #3D433B 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.