#273E31
Closest named color: Onyx (#343A40). oklch(34% 0.037 158.9), rgb(39, 62, 49).
Aa
White text reads best on this color (11.54:1).
About this color
#273E31 is a dark, muted green. In OKLCH its lightness is 34%, its chroma 0.037 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.039 away. White text reads best on it, at 11.54:1.
| Hue family | Greens |
| Lightness | dark (34%) |
| Chroma | muted (0.037) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.81:1 |
| White text | 11.54:1 |
Values
| HEX | #273E31 |
| RGB | rgb(39, 62, 49) |
| HSL | hsl(146, 23%, 20%) |
| OKLCH | oklch(34% 0.037 158.9) |
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 #273E31 | 11.54:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #273E31 | 1.81:1 | Fails | Lc 7.4 | Not readable |
| #273E31 text on white | 11.54:1 | AAA | Lc 96.5 | Preferred for body text |
| #273E31 text on black | 1.81:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E6EBE8
oklch(93.5% 0.007 160.1)
-
Step 200
200
#D1DCD5
oklch(88.4% 0.015 158.2)
-
Step 300
300
#B2C6BA
oklch(80.8% 0.027 159.4)
-
Step 400
400
#8AA997
oklch(70.6% 0.043 159.6)
-
Step 500
500
#6C947D
oklch(63% 0.056 159.1)
-
Step 600
600
#537F66
oklch(55.7% 0.062 158.6)
-
Step 700
700
#436B55
oklch(49.1% 0.058 159.3)
-
Step 800
800
#385745
oklch(42.7% 0.048 158.1)
-
Step 900
900 (this color)
#273E31
oklch(34% 0.037 158.9)
-
Step 950
950
#1D2A22
oklch(27% 0.023 157.4)
#273E31 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) | #3E3B30 | 0.035 |
| Deuteranopia (no green cones) | #3A3832 | 0.034 |
| Tritanopia (no blue cones) | #223E3A | 0.016 |
| Achromatopsia (no color) | #393939 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #273E31
#273E31
oklch(34% 0.037 158.9)
- #45313E
#45313E
oklch(34.1% 0.036 340)
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 #273E31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.039
- Pakistan Green #283618 ΔE 0.040
- Evergreen #05472A ΔE 0.044
- Charcoal Grey #3C4142 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.054
- Dark Olive #373E02 ΔE 0.056
- Midnight Green #073B4C ΔE 0.057
- Charcoal #264653 ΔE 0.057
Use #273E31 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.