#01921B
Closest named color: Emerald Green (#028F1E). oklch(57.3% 0.186 143.9), rgb(1, 146, 27).
Aa
Black text reads best on this color (5.12:1).
About this color
#01921B is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.186 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald Green (#028F1E), ΔE 0.010 away. Black text reads best on it, at 5.12:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.186) |
| Temperature | in between |
| Nearest name | Emerald Green (#028F1E) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #01921B |
| RGB | rgb(1, 146, 27) |
| HSL | hsl(131, 99%, 29%) |
| OKLCH | oklch(57.3% 0.186 143.9) |
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 #01921B | 4.09:1 | AA large text | Lc -72.8 | Content text, not long reading |
| Black text on #01921B | 5.12:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #01921B text on white | 4.09:1 | AA large text | Lc 67.3 | Content text, not long reading |
| #01921B text on black | 5.12:1 | AA | Lc -34.3 | Non-text elements, placeholder text |
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
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E1EEE0
oklch(93.6% 0.023 143.4)
-
Step 200
200
#C7E2C6
oklch(88.5% 0.048 144.2)
-
Step 300
300
#A0CF9E
oklch(80.8% 0.084 143.7)
-
Step 400
400
#69B668
oklch(70.7% 0.135 143.7)
-
Step 500
500
#38A33D
oklch(63.2% 0.171 143.9)
-
Step 600
600 (this color)
#01921B
oklch(57.3% 0.186 143.9)
-
Step 700
700
#007613
oklch(49.1% 0.16 143.8)
-
Step 800
800
#00610E
oklch(42.8% 0.139 143.9)
-
Step 900
900
#0E5013
oklch(37.8% 0.112 143.8)
-
Step 950
950
#0C2F0D
oklch(27.1% 0.071 143.7)
#01921B 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) | #958300 | 0.135 |
| Deuteranopia (no green cones) | #887A2A | 0.135 |
| Tritanopia (no blue cones) | #008E7C | 0.118 |
| Achromatopsia (no color) | #7D7D7D | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01921B
#01921B
oklch(57.3% 0.186 143.9)
- #AB48B5
#AB48B5
oklch(57.4% 0.186 323.9)
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 #01921B, closest first.
No curated palette has a color within ΔE 0.04 of #01921B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald Green #028F1E ΔE 0.010
- True Green #089404 ΔE 0.011
- Irish Green #019529 ΔE 0.011
- Kelley Green #009337 ΔE 0.021
- Forest Green #228B22 ΔE 0.023
- Grass Green #3F9B0B ΔE 0.041
- Grassy Green #419C03 ΔE 0.045
- Dark Grass Green #388004 ΔE 0.053
Use #01921B 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.