#284137
Closest named color: Onyx (#343A40). oklch(35.1% 0.036 167.3), rgb(40, 65, 55).
Aa
White text reads best on this color (11.04:1).
About this color
#284137 is a dark, muted green. In OKLCH its lightness is 35%, its chroma 0.036 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Onyx (#343A40), ΔE 0.037 away. White text reads best on it, at 11.04:1.
| Hue family | Greens |
| Lightness | dark (35%) |
| Chroma | muted (0.036) |
| Temperature | in between |
| Nearest name | Onyx (#343A40) |
| Black text | 1.90:1 |
| White text | 11.04:1 |
Values
| HEX | #284137 |
| RGB | rgb(40, 65, 55) |
| HSL | hsl(156, 24%, 21%) |
| OKLCH | oklch(35.1% 0.036 167.3) |
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 #284137 | 11.04:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #284137 | 1.90:1 | Fails | Lc 8.4 | Not readable |
| #284137 text on white | 11.04:1 | AAA | Lc 95.5 | Preferred for body text |
| #284137 text on black | 1.90:1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE9
oklch(93.7% 0.008 168.7)
-
Step 200
200
#D0DCD7
oklch(88.4% 0.015 169.2)
-
Step 300
300
#B1C6BD
oklch(80.8% 0.026 168.1)
-
Step 400
400
#88AA9B
oklch(70.8% 0.043 166.5)
-
Step 500
500
#699483
oklch(63% 0.054 168.1)
-
Step 600
600
#507F6C
oklch(55.7% 0.06 166.8)
-
Step 700
700
#406B5A
oklch(49.1% 0.056 167)
-
Step 800
800
#35574A
oklch(42.6% 0.045 168)
-
Step 900
900 (this color)
#284137
oklch(35.1% 0.036 167.3)
-
Step 950
950
#1C2A24
oklch(27% 0.022 166.4)
#284137 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) | #403E37 | 0.036 |
| Deuteranopia (no green cones) | #3C3B38 | 0.035 |
| Tritanopia (no blue cones) | #22413E | 0.013 |
| Achromatopsia (no color) | #3C3C3C | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284137
#284137
oklch(35.1% 0.036 167.3)
- #49333E
#49333E
oklch(35% 0.036 347.7)
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 #284137, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.037
- Evergreen #05472A ΔE 0.045
- Charcoal #264653 ΔE 0.046
- Dark Teal #014D4E ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.050
- Pakistan Green #283618 ΔE 0.051
- Dark Slate Gray #2F4F4F ΔE 0.055
Use #284137 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.