#0A210A
Closest named color: Dark Forest Green (#002D04). oklch(22.2% 0.052 143.6), rgb(10, 33, 10).
Aa
White text reads best on this color (17.00:1).
About this color
#0A210A is a very dark, muted green. In OKLCH its lightness is 22%, its chroma 0.052 and its hue 144°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.048 away. White text reads best on it, at 17.00:1.
| Hue family | Greens |
| Lightness | very dark (22%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.23:1 |
| White text | 17.00:1 |
Values
| HEX | #0A210A |
| RGB | rgb(10, 33, 10) |
| HSL | hsl(120, 53%, 8%) |
| OKLCH | oklch(22.2% 0.052 143.6) |
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 #0A210A | 17.00:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #0A210A | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #0A210A text on white | 17.00:1 | AAA | Lc 103.8 | Preferred for body text |
| #0A210A text on black | 1.23:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E3EDE2
oklch(93.6% 0.018 142.8)
-
Step 200
200
#CCDFCB
oklch(88.4% 0.034 143.9)
-
Step 300
300
#AACBA8
oklch(80.8% 0.06 143.5)
-
Step 400
400
#7BB179
oklch(70.8% 0.098 143.6)
-
Step 500
500
#579D56
oklch(63.2% 0.125 143.6)
-
Step 600
600
#39873A
oklch(55.6% 0.136 143.7)
-
Step 700
700
#2B722C
oklch(49.1% 0.126 143.6)
-
Step 800
800
#255D26
oklch(42.7% 0.104 143.8)
-
Step 900
900
#244C23
oklch(37.6% 0.081 143.3)
-
Step 950
950 (this color)
#0A210A
oklch(22.2% 0.052 143.6)
#0A210A 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) | #221D08 | 0.039 |
| Deuteranopia (no green cones) | #1F1B0C | 0.039 |
| Tritanopia (no blue cones) | #07201C | 0.033 |
| Achromatopsia (no color) | #1C1C1C | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A210A
#0A210A
oklch(22.2% 0.052 143.6)
- #261229
#261229
oklch(22.2% 0.051 322.2)
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 #0A210A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.048
- Very Dark Green #062E03 ΔE 0.052
- Jet #212529 ΔE 0.068
- Rich Black #0D1B2A ΔE 0.071
- Dark Brown #341C02 ΔE 0.074
- Rich Navy #001219 ΔE 0.076
- Dark #1B2431 ΔE 0.077
- Almost Black #070D0D ΔE 0.084
Use #0A210A 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.