#21813B
Closest named color: Jungle Green (#048243). oklch(53.2% 0.137 148.2), rgb(33, 129, 59).
Aa
White text reads best on this color (4.92:1).
About this color
#21813B is a medium-dark, moderately saturated green. In OKLCH its lightness is 53%, its chroma 0.137 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jungle Green (#048243), ΔE 0.011 away. White text reads best on it, at 4.92:1.
| Hue family | Greens |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Jungle Green (#048243) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #21813B |
| RGB | rgb(33, 129, 59) |
| HSL | hsl(136, 59%, 32%) |
| OKLCH | oklch(53.2% 0.137 148.2) |
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 #21813B | 4.92:1 | AA | Lc -79.1 | Fine for body text |
| Black text on #21813B | 4.26:1 | AA large text | Lc 30.4 | Non-text elements, placeholder text |
| #21813B text on white | 4.92:1 | AA | Lc 73.7 | Content text, not long reading |
| #21813B text on black | 4.26:1 | AA large text | Lc -28.0 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EDE3
oklch(93.5% 0.018 148.1)
-
Step 200
200
#CBE0CD
oklch(88.6% 0.034 148)
-
Step 300
300
#A6CCAB
oklch(80.9% 0.061 148.6)
-
Step 400
400
#75B27E
oklch(70.8% 0.098 148.2)
-
Step 500
500
#4D9E5C
oklch(63.1% 0.126 148)
-
Step 600
600 (this color)
#21813B
oklch(53.2% 0.137 148.2)
-
Step 700
700
#1B7334
oklch(49% 0.126 148.4)
-
Step 800
800
#1A5E2B
oklch(42.7% 0.106 148.1)
-
Step 900
900
#1D4D27
oklch(37.6% 0.082 148.1)
-
Step 950
950
#122D17
oklch(26.9% 0.052 148.1)
#21813B 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) | #827535 | 0.109 |
| Deuteranopia (no green cones) | #776D40 | 0.109 |
| Tritanopia (no blue cones) | #007E71 | 0.079 |
| Achromatopsia (no color) | #707070 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21813B
#21813B
oklch(53.2% 0.137 148.2)
- #964B94
#964B94
oklch(53.2% 0.138 328.3)
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 #21813B, closest first.
No curated palette has a color within ΔE 0.04 of #21813B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jungle Green #048243 ΔE 0.011
- Tree Green #2A7E19 ΔE 0.028
- Dark Grass Green #388004 ΔE 0.037
- Forest Green #228B22 ΔE 0.043
- Sea Green #2E8B57 ΔE 0.043
- Green #008000 ΔE 0.045
- Emerald Green #028F1E ΔE 0.056
- Kelley Green #009337 ΔE 0.056
Use #21813B 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.