#284D39
Closest named color: Dark Blue Green (#005249). oklch(38.6% 0.055 158.7), rgb(40, 77, 57).
Aa
White text reads best on this color (9.49:1).
About this color
#284D39 is a dark, muted green. In OKLCH its lightness is 39%, its chroma 0.055 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.031 away. White text reads best on it, at 9.49:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #284D39 |
| RGB | rgb(40, 77, 57) |
| HSL | hsl(148, 32%, 23%) |
| OKLCH | oklch(38.6% 0.055 158.7) |
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 #284D39 | 9.49:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #284D39 | 2.21:1 | Fails | Lc 12.1 | Not readable |
| #284D39 text on white | 9.49:1 | AAA | Lc 91.9 | Preferred for body text |
| #284D39 text on black | 2.21:1 | Fails | Lc -10.5 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CDDED4
oklch(88.5% 0.023 160.2)
-
Step 300
300
#ABC9B7
oklch(80.9% 0.041 159)
-
Step 400
400
#7DAE92
oklch(70.8% 0.066 159.1)
-
Step 500
500
#5A9977
oklch(63.1% 0.084 159.2)
-
Step 600
600
#3D845F
oklch(55.7% 0.093 158.5)
-
Step 700
700
#2F6F4E
oklch(49% 0.085 158.4)
-
Step 800
800
#285B40
oklch(42.8% 0.072 158.1)
-
Step 900
900 (this color)
#284D39
oklch(38.6% 0.055 158.7)
-
Step 950
950
#172C20
oklch(27.1% 0.035 157.9)
#284D39 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) | #4C4838 | 0.051 |
| Deuteranopia (no green cones) | #47443A | 0.051 |
| Tritanopia (no blue cones) | #1F4D47 | 0.024 |
| Achromatopsia (no color) | #464646 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #284D39
#284D39
oklch(38.6% 0.055 158.7)
- #57384E
#57384E
oklch(38.5% 0.055 337.9)
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 #284D39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.038
- Dark Teal #014D4E ΔE 0.040
- Evergreen #05472A ΔE 0.042
- Pine Green #0A481E ΔE 0.051
- Deep Teal #00555A ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.053
- Charcoal #264653 ΔE 0.057
Use #284D39 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.