#2A4D40
Closest named color: Dark Slate Gray (#2F4F4F). oklch(38.9% 0.047 168.1), rgb(42, 77, 64).
Aa
White text reads best on this color (9.40:1).
About this color
#2A4D40 is a dark, muted green. In OKLCH its lightness is 39%, its chroma 0.047 and its hue 168°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.026 away. White text reads best on it, at 9.40:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | muted (0.047) |
| Temperature | in between |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.23:1 |
| White text | 9.40:1 |
Values
| HEX | #2A4D40 |
| RGB | rgb(42, 77, 64) |
| HSL | hsl(158, 29%, 23%) |
| OKLCH | oklch(38.9% 0.047 168.1) |
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 #2A4D40 | 9.40:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #2A4D40 | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #2A4D40 text on white | 9.40:1 | AAA | Lc 91.6 | Preferred for body text |
| #2A4D40 text on black | 2.23:1 | Fails | Lc -10.7 | 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
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CEDDD7
oklch(88.5% 0.018 170)
-
Step 300
300
#ACC8BC
oklch(80.9% 0.035 167.7)
-
Step 400
400
#7EAC9A
oklch(70.6% 0.056 168.6)
-
Step 500
500
#5C9881
oklch(63.2% 0.072 167.7)
-
Step 600
600
#40826B
oklch(55.6% 0.077 168.4)
-
Step 700
700
#316E59
oklch(49.1% 0.072 168.2)
-
Step 800
800
#2A5A49
oklch(42.8% 0.06 168)
-
Step 900
900 (this color)
#2A4D40
oklch(38.9% 0.047 168.1)
-
Step 950
950
#172B24
oklch(26.9% 0.029 169.8)
#2A4D40 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) | #4B493F | 0.047 |
| Deuteranopia (no green cones) | #464541 | 0.045 |
| Tritanopia (no blue cones) | #204D49 | 0.017 |
| Achromatopsia (no color) | #464646 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A4D40
#2A4D40
oklch(38.9% 0.047 168.1)
- #583B49
#583B49
oklch(39% 0.046 349)
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 #2A4D40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.026
- Dark Blue Green #005249 ΔE 0.028
- Dark Teal #014D4E ΔE 0.033
- Deep Teal #00555A ΔE 0.045
- Charcoal Grey #3C4142 ΔE 0.046
- Charcoal #264653 ΔE 0.046
- Evergreen #05472A ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.059
Use #2A4D40 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.