#42533F
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.2% 0.039 140.9), rgb(66, 83, 63).
Aa
White text reads best on this color (8.26:1).
About this color
#42533F is a dark, muted green. In OKLCH its lightness is 42%, its chroma 0.039 and its hue 141°. 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 8.26:1.
| Hue family | Greens |
| Lightness | dark (42%) |
| Chroma | muted (0.039) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #42533F |
| RGB | rgb(66, 83, 63) |
| HSL | hsl(111, 14%, 29%) |
| OKLCH | oklch(42.2% 0.039 140.9) |
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 #42533F | 8.26:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #42533F | 2.54:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #42533F text on white | 8.26:1 | AAA | Lc 88.5 | Fine for body text |
| #42533F text on black | 2.54:1 | Fails | Lc -13.6 | 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
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D5DBD4
oklch(88.5% 0.011 141.3)
-
Step 300
300
#B9C4B7
oklch(80.8% 0.022 140.9)
-
Step 400
400
#95A791
oklch(70.8% 0.037 140)
-
Step 500
500
#7A9177
oklch(63.1% 0.046 141.9)
-
Step 600
600
#637B5F
oklch(55.6% 0.051 141.1)
-
Step 700
700
#52684F
oklch(49.2% 0.047 141.7)
-
Step 800
800 (this color)
#42533F
oklch(42.2% 0.039 140.9)
-
Step 900
900
#394637
oklch(37.8% 0.03 141.4)
-
Step 950
950
#212920
oklch(27% 0.02 142)
#42533F 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) | #544F3E | 0.029 |
| Deuteranopia (no green cones) | #514E40 | 0.027 |
| Tritanopia (no blue cones) | #41524D | 0.024 |
| Achromatopsia (no color) | #4E4E4E | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42533F
#42533F
oklch(42.2% 0.039 140.9)
- #57475B
#57475B
oklch(42.2% 0.038 319.5)
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 #42533F, 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
- Dark Green Blue #1F6357 ΔE 0.056
- Green Brown #544E03 ΔE 0.060
- Deep Teal #00555A ΔE 0.062
- Charcoal Grey #3C4142 ΔE 0.063
- Spruce #0A5F38 ΔE 0.063
Use #42533F 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.