#353A33
Closest named color: Onyx (#343A40). oklch(34.1% 0.014 136.7), rgb(53, 58, 51).
Aa
White text reads best on this color (11.63:1).
About this color
#353A33 is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.014. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.023 away. White text reads best on it, at 11.63:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.014) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.80:1 |
| White text | 11.63:1 |
Values
| HEX | #353A33 |
| RGB | rgb(53, 58, 51) |
| HSL | hsl(103, 6%, 21%) |
| OKLCH | oklch(34.1% 0.014 136.7) |
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 #353A33 | 11.63:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #353A33 | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #353A33 text on white | 11.63:1 | AAA | Lc 96.8 | Preferred for body text |
| #353A33 text on black | 1.80:1 | 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
#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
#BDC2BC
oklch(80.8% 0.01 140.5)
-
Step 400
400
#9CA399
oklch(70.7% 0.016 136.1)
-
Step 500
500
#848D80
oklch(63.2% 0.022 135.9)
-
Step 600
600
#6D7769
oklch(55.7% 0.024 136.7)
-
Step 700
700
#5B6458
oklch(49.2% 0.022 137.8)
-
Step 800
800
#4B5148
oklch(42.7% 0.016 135)
-
Step 900
900 (this color)
#353A33
oklch(34.1% 0.014 136.7)
-
Step 950
950
#242723
oklch(26.8% 0.008 137.8)
#353A33 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) | #3B3933 | 0.010 |
| Deuteranopia (no green cones) | #3A3833 | 0.010 |
| Tritanopia (no blue cones) | #353938 | 0.010 |
| Achromatopsia (no color) | #383838 | 0.014 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #353A33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.023
- Charcoal Grey #3C4142 ΔE 0.033
- Gunmetal #293241 ΔE 0.047
- Pakistan Green #283618 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.051
- Charcoal #264653 ΔE 0.057
- Midnight Green #073B4C ΔE 0.061
- Space Cadet #2B2D42 ΔE 0.061
Use #353A33 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.