#21810E
Closest named color: Tree Green (#2A7E19). oklch(52.8% 0.167 141.1), rgb(33, 129, 14).
Aa
White text reads best on this color (4.98:1).
About this color
#21810E is a medium-dark, vivid green. In OKLCH its lightness is 53%, its chroma 0.167 and its hue 141°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Tree Green (#2A7E19), ΔE 0.013 away. White text reads best on it, at 4.98:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Tree Green (#2A7E19) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #21810E |
| RGB | rgb(33, 129, 14) |
| HSL | hsl(110, 80%, 28%) |
| OKLCH | oklch(52.8% 0.167 141.1) |
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 #21810E | 4.98:1 | AA | Lc -79.4 | Fine for body text |
| Black text on #21810E | 4.21:1 | AA large text | Lc 30.1 | Non-text elements, placeholder text |
| #21810E text on white | 4.98:1 | AA | Lc 74.0 | Content text, not long reading |
| #21810E text on black | 4.21:1 | AA large text | Lc -27.7 | Dividers and decoration only |
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 600.
-
Step 50
50
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E2EEE0
oklch(93.6% 0.023 141.2)
-
Step 200
200
#CBE1C7
oklch(88.6% 0.042 140.8)
-
Step 300
300
#A6CDA0
oklch(80.8% 0.075 141.3)
-
Step 400
400
#75B36B
oklch(70.7% 0.12 141)
-
Step 500
500
#4D9F41
oklch(63% 0.153 141.2)
-
Step 600
600 (this color)
#21810E
oklch(52.8% 0.167 141.1)
-
Step 700
700
#1D750C
oklch(49.2% 0.156 141.2)
-
Step 800
800
#1B5F10
oklch(42.7% 0.129 141.2)
-
Step 900
900
#1E4E16
oklch(37.7% 0.1 141)
-
Step 950
950
#132E0E
oklch(27.1% 0.064 140.6)
#21810E 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) | #847400 | 0.115 |
| Deuteranopia (no green cones) | #7A6D1F | 0.115 |
| Tritanopia (no blue cones) | #057D6D | 0.110 |
| Achromatopsia (no color) | #707070 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21810E
#21810E
oklch(52.8% 0.167 141.1)
- #9542A4
#9542A4
oklch(52.7% 0.168 321.3)
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 #21810E, closest first.
No curated palette has a color within ΔE 0.04 of #21810E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tree Green #2A7E19 ΔE 0.013
- Green #008000 ΔE 0.013
- Dark Grass Green #388004 ΔE 0.014
- Forest Green #228B22 ΔE 0.030
- Emerald Green #028F1E ΔE 0.040
- Jungle Green #048243 ΔE 0.043
- Kelley Green #009337 ΔE 0.054
- True Green #089404 ΔE 0.057
Use #21810E 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.