#273633
Closest named color: Gunmetal (#293241). oklch(31.8% 0.021 181.3), rgb(39, 54, 51).
Aa
White text reads best on this color (12.63:1).
About this color
#273633 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.033 away. White text reads best on it, at 12.63:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.66:1 |
| White text | 12.63:1 |
Values
| HEX | #273633 |
| RGB | rgb(39, 54, 51) |
| HSL | hsl(168, 16%, 18%) |
| OKLCH | oklch(31.8% 0.021 181.3) |
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 #273633 | 12.63:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #273633 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #273633 text on white | 12.63:1 | AAA | Lc 98.6 | Preferred for body text |
| #273633 text on black | 1.66:1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCD9
oklch(88.5% 0.014 179.4)
-
Step 300
300
#B0C6C1
oklch(80.8% 0.025 180.5)
-
Step 400
400
#87A9A2
oklch(70.7% 0.039 181.2)
-
Step 500
500
#68948B
oklch(63.2% 0.05 180.5)
-
Step 600
600
#4E7E75
oklch(55.6% 0.054 181)
-
Step 700
700
#3F6A62
oklch(49% 0.05 181)
-
Step 800
800
#345750
oklch(42.8% 0.042 180.1)
-
Step 900
900
#2E4743
oklch(37.6% 0.032 183.5)
-
Step 950
950 (this color)
#273633
oklch(31.8% 0.021 181.3)
#273633 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) | #353433 | 0.023 |
| Deuteranopia (no green cones) | #323233 | 0.021 |
| Tritanopia (no blue cones) | #233735 | 0.006 |
| Achromatopsia (no color) | #333333 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #273633
#273633
oklch(31.8% 0.021 181.3)
- #3C2E32
#3C2E32
oklch(31.8% 0.021 359.4)
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 #273633, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.033
- Onyx #343A40 ΔE 0.033
- Pakistan Green #283618 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.044
- Midnight Green #073B4C ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.055
- Jet #212529 ΔE 0.059
Use #273633 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.