#273631
Closest named color: Onyx (#343A40). oklch(31.8% 0.022 172.4), rgb(39, 54, 49).
Aa
White text reads best on this color (12.66:1).
About this color
#273631 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.036 away. White text reads best on it, at 12.66:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.65:1 |
| White text | 12.66:1 |
Values
| HEX | #273631 |
| RGB | rgb(39, 54, 49) |
| HSL | hsl(160, 16%, 18%) |
| OKLCH | oklch(31.8% 0.022 172.4) |
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 #273631 | 12.66:1 | AAA | Lc -102.0 | Preferred for body text |
| Black text on #273631 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #273631 text on white | 12.66:1 | AAA | Lc 98.7 | Preferred for body text |
| #273631 text on black | 1.65:1 | 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
#E5EBE9
oklch(93.5% 0.007 174.4)
-
Step 200
200
#D0DCD8
oklch(88.4% 0.014 174.1)
-
Step 300
300
#B1C6BF
oklch(80.9% 0.025 173.7)
-
Step 400
400
#87A99E
oklch(70.6% 0.041 173.4)
-
Step 500
500
#689486
oklch(63% 0.053 172.8)
-
Step 600
600
#4F7F70
oklch(55.7% 0.058 172.3)
-
Step 700
700
#3F6B5D
oklch(49.1% 0.054 171.7)
-
Step 800
800
#35574C
oklch(42.7% 0.044 171.7)
-
Step 900
900
#2E4840
oklch(37.8% 0.035 173.1)
-
Step 950
950 (this color)
#273631
oklch(31.8% 0.022 172.4)
#273631 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) | #353431 | 0.023 |
| Deuteranopia (no green cones) | #323231 | 0.021 |
| Tritanopia (no blue cones) | #233634 | 0.007 |
| Achromatopsia (no color) | #333333 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #273631
#273631
oklch(31.8% 0.022 172.4)
- #3B2E33
#3B2E33
oklch(31.8% 0.021 353.3)
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 #273631, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.036
- Gunmetal #293241 ΔE 0.036
- Pakistan Green #283618 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.048
- Midnight Green #073B4C ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.056
- Jet #212529 ΔE 0.060
Use #273631 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.