#233633
Closest named color: Gunmetal (#293241). oklch(31.5% 0.025 183.8), rgb(35, 54, 51).
Aa
White text reads best on this color (12.75:1).
About this color
#233633 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.034 away. White text reads best on it, at 12.75:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.64:1 |
| White text | 12.75:1 |
Values
| HEX | #233633 |
| RGB | rgb(35, 54, 51) |
| HSL | hsl(171, 21%, 17%) |
| OKLCH | oklch(31.5% 0.025 183.8) |
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 #233633 | 12.75:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #233633 | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #233633 text on white | 12.75:1 | AAA | Lc 98.8 | Preferred for body text |
| #233633 text on black | 1.64:1 | 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 950.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#ACC7C3
oklch(80.8% 0.03 185.8)
-
Step 400
400
#7FABA4
oklch(70.7% 0.048 184.1)
-
Step 500
500
#5E968D
oklch(63.2% 0.061 183)
-
Step 600
600
#428077
oklch(55.6% 0.066 183.4)
-
Step 700
700
#336C64
oklch(49% 0.062 183.5)
-
Step 800
800
#2B5852
oklch(42.6% 0.051 184.3)
-
Step 900
900
#284944
oklch(37.8% 0.04 183.4)
-
Step 950
950 (this color)
#233633
oklch(31.5% 0.025 183.8)
#233633 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) | #343433 | 0.026 |
| Deuteranopia (no green cones) | #313133 | 0.026 |
| Tritanopia (no blue cones) | #1D3735 | 0.008 |
| Achromatopsia (no color) | #323232 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #233633
#233633
oklch(31.5% 0.025 183.8)
- #3D2C30
#3D2C30
oklch(31.4% 0.026 3.1)
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 #233633, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.034
- Onyx #343A40 ΔE 0.037
- Pakistan Green #283618 ΔE 0.043
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.049
- Jet #212529 ΔE 0.058
- Charcoal Grey #3C4142 ΔE 0.059
Use #233633 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.