#2A3735
Closest named color: Onyx (#343A40). oklch(32.4% 0.018 184.9), rgb(42, 55, 53).
Aa
White text reads best on this color (12.37:1).
About this color
#2A3735 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.027 away. White text reads best on it, at 12.37:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.69:1 |
| White text | 12.37:1 |
Values
| HEX | #2A3735 |
| RGB | rgb(42, 55, 53) |
| HSL | hsl(171, 13%, 19%) |
| OKLCH | oklch(32.4% 0.018 184.9) |
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 #2A3735 | 12.37:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #2A3735 | 1.69:1 | Fails | Lc 0.0 | Not readable |
| #2A3735 text on white | 12.37:1 | AAA | Lc 98.2 | Preferred for body text |
| #2A3735 text on black | 1.69:1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBEA
oklch(93.7% 0.004 179.7)
-
Step 200
200
#D4DBDA
oklch(88.6% 0.008 186.9)
-
Step 300
300
#B8C3C1
oklch(80.8% 0.012 184)
-
Step 400
400
#93A5A2
oklch(70.7% 0.021 184.7)
-
Step 500
500
#788F8B
oklch(63.1% 0.027 183.8)
-
Step 600
600
#607975
oklch(55.5% 0.03 184.5)
-
Step 700
700
#506663
oklch(49.1% 0.027 186.1)
-
Step 800
800
#415350
oklch(42.6% 0.023 184)
-
Step 900
900 (this color)
#2A3735
oklch(32.4% 0.018 184.9)
-
Step 950
950
#212827
oklch(27% 0.01 186.1)
#2A3735 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) | #363535 | 0.020 |
| Deuteranopia (no green cones) | #333435 | 0.017 |
| Tritanopia (no blue cones) | #263836 | 0.006 |
| Achromatopsia (no color) | #343434 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A3735
#2A3735
oklch(32.4% 0.018 184.9)
- #3C3033
#3C3033
oklch(32.3% 0.018 1.4)
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 #2A3735, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.027
- Gunmetal #293241 ΔE 0.032
- Dark Blue Grey #1F3B4D ΔE 0.041
- Pakistan Green #283618 ΔE 0.047
- Midnight Green #073B4C ΔE 0.047
- Space Cadet #2B2D42 ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.048
- Charcoal #264653 ΔE 0.061
Use #2A3735 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.