#2F3D01
Closest named color: Dark Olive (#373E02). oklch(33.5% 0.081 123), rgb(47, 61, 1).
Aa
White text reads best on this color (11.73:1).
About this color
#2F3D01 is a dark, moderately saturated brown. In OKLCH its lightness is 34%, its chroma 0.081 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.014 away. White text reads best on it, at 11.73:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.78:1 |
| White text | 11.73:1 |
Values
| HEX | #2F3D01 |
| RGB | rgb(47, 61, 1) |
| HSL | hsl(74, 97%, 12%) |
| OKLCH | oklch(33.5% 0.081 123) |
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 #2F3D01 | 11.73:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #2F3D01 | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #2F3D01 text on white | 11.73:1 | AAA | Lc 96.8 | Preferred for body text |
| #2F3D01 text on black | 1.78:1 | 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 900.
-
Step 50
50
#F4F6F0
oklch(97% 0.008 121.6)
-
Step 100
100
#E7ECDF
oklch(93.6% 0.018 124)
-
Step 200
200
#D5DDC5
oklch(88.5% 0.033 122.1)
-
Step 300
300
#B9C89C
oklch(81% 0.062 123.1)
-
Step 400
400
#95AB65
oklch(70.8% 0.098 123.1)
-
Step 500
500
#7B9537
oklch(63% 0.124 123.1)
-
Step 600
600
#657F02
oklch(55.6% 0.135 122.8)
-
Step 700
700
#546B00
oklch(49.1% 0.121 123.1)
-
Step 800
800
#445801
oklch(42.8% 0.105 123.5)
-
Step 900
900 (this color)
#2F3D01
oklch(33.5% 0.081 123)
-
Step 950
950
#222A0B
oklch(26.9% 0.051 122.1)
#2F3D01 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) | #413800 | 0.033 |
| Deuteranopia (no green cones) | #403806 | 0.034 |
| Tritanopia (no blue cones) | #323932 | 0.067 |
| Achromatopsia (no color) | #383838 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F3D01
#2F3D01
oklch(33.5% 0.081 123)
- #3F2B59
#3F2B59
oklch(33.6% 0.081 302.3)
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 #2F3D01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.014
- Forrest Green #154406 ΔE 0.034
- Hunter Green #0B4008 ΔE 0.037
- Pakistan Green #283618 ΔE 0.038
- Pine Green #0A481E ΔE 0.044
- British Racing Green #05480D ΔE 0.046
- Racing Green #014600 ΔE 0.048
- Darkgreen #054907 ΔE 0.050
Use #2F3D01 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.