#101F09
Closest named color: Dark Forest Green (#002D04). oklch(21.9% 0.045 136.6), rgb(16, 31, 9).
Aa
White text reads best on this color (17.18:1).
About this color
#101F09 is a very dark, muted green. In OKLCH its lightness is 22%, its chroma 0.045 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.055 away. White text reads best on it, at 17.18:1.
| Hue family | Greens |
| Lightness | very dark (22%) |
| Chroma | muted (0.045) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.22:1 |
| White text | 17.18:1 |
Values
| HEX | #101F09 |
| RGB | rgb(16, 31, 9) |
| HSL | hsl(101, 55%, 8%) |
| OKLCH | oklch(21.9% 0.045 136.6) |
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 #101F09 | 17.18:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #101F09 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #101F09 text on white | 17.18:1 | AAA | Lc 104.0 | Preferred for body text |
| #101F09 text on black | 1.22:1 | 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
#F3F7F2
oklch(97.2% 0.008 139.4)
-
Step 100
100
#E5ECE2
oklch(93.5% 0.015 136.1)
-
Step 200
200
#D0DECB
oklch(88.5% 0.03 137.4)
-
Step 300
300
#B1C9A7
oklch(80.9% 0.054 136.5)
-
Step 400
400
#88AD78
oklch(70.6% 0.085 136.5)
-
Step 500
500
#6A9955
oklch(63.2% 0.109 136.6)
-
Step 600
600
#518339
oklch(55.7% 0.118 136.6)
-
Step 700
700
#416E2B
oklch(49% 0.109 136.6)
-
Step 800
800
#365A25
oklch(42.7% 0.091 136.7)
-
Step 900
900
#2F4A23
oklch(37.7% 0.071 136.8)
-
Step 950
950 (this color)
#101F09
oklch(21.9% 0.045 136.6)
#101F09 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) | #201C07 | 0.028 |
| Deuteranopia (no green cones) | #1E1B0A | 0.028 |
| Tritanopia (no blue cones) | #0F1E1A | 0.031 |
| Achromatopsia (no color) | #1B1B1B | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #101F09
#101F09
oklch(21.9% 0.045 136.6)
- #231328
#231328
oklch(21.9% 0.046 317.8)
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 #101F09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.055
- Very Dark Green #062E03 ΔE 0.059
- Jet #212529 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.068
- Dark Brown #341C02 ΔE 0.068
- Rich Navy #001219 ΔE 0.073
- Dark #1B2431 ΔE 0.075
- Almost Black #070D0D ΔE 0.078
Use #101F09 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.