#42523D
Closest named color: Dark Slate Gray (#2F4F4F). oklch(41.8% 0.04 138.3), rgb(66, 82, 61).
Aa
White text reads best on this color (8.38:1).
About this color
#42523D is a dark, muted green. In OKLCH its lightness is 42%, its chroma 0.040 and its hue 138°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.040 away. White text reads best on it, at 8.38:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | muted (0.040) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #42523D |
| RGB | rgb(66, 82, 61) |
| HSL | hsl(106, 15%, 28%) |
| OKLCH | oklch(41.8% 0.04 138.3) |
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 #42523D | 8.38:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #42523D | 2.50:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #42523D text on white | 8.38:1 | AAA | Lc 88.9 | Fine for body text |
| #42523D text on black | 2.50:1 | Fails | Lc -13.3 | 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 800.
-
Step 50
50
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E8EBE7
oklch(93.7% 0.006 137.8)
-
Step 200
200
#D5DBD3
oklch(88.5% 0.013 137.8)
-
Step 300
300
#B9C4B6
oklch(80.8% 0.023 139)
-
Step 400
400
#96A690
oklch(70.6% 0.036 137.1)
-
Step 500
500
#7C9175
oklch(63.2% 0.048 137.9)
-
Step 600
600
#657B5E
oklch(55.7% 0.051 138.2)
-
Step 700
700
#53674D
oklch(49% 0.047 138.5)
-
Step 800
800 (this color)
#42523D
oklch(41.8% 0.04 138.3)
-
Step 900
900
#3A4636
oklch(37.8% 0.031 137.9)
-
Step 950
950
#222920
oklch(27.1% 0.019 138.8)
#42523D 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) | #534F3C | 0.027 |
| Deuteranopia (no green cones) | #514D3E | 0.028 |
| Tritanopia (no blue cones) | #41504C | 0.027 |
| Achromatopsia (no color) | #4E4E4E | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42523D
#42523D
oklch(41.8% 0.04 138.3)
- #56465B
#56465B
oklch(41.9% 0.04 318.1)
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 #42523D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.040
- Pine #2B5D34 ΔE 0.049
- Dark Blue Green #005249 ΔE 0.056
- Green Brown #544E03 ΔE 0.058
- Dark Green Blue #1F6357 ΔE 0.059
- Charcoal Grey #3C4142 ΔE 0.061
- Spruce #0A5F38 ΔE 0.063
- Deep Teal #00555A ΔE 0.063
Use #42523D 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.