#151B00
Closest named color: Dark Forest Green (#002D04). oklch(20.8% 0.05 120.4), rgb(21, 27, 0).
Aa
White text reads best on this color (17.66:1).
About this color
#151B00 is a very dark, muted brown. In OKLCH its lightness is 21%, its chroma 0.050 and its hue 120°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Forest Green (#002D04), ΔE 0.065 away. White text reads best on it, at 17.66:1.
| Hue family | Browns |
| Lightness | very dark (21%) |
| Chroma | muted (0.050) |
| Temperature | in between |
| Nearest name | Dark Forest Green (#002D04) |
| Black text | 1.18:1 |
| White text | 17.66:1 |
Values
| HEX | #151B00 |
| RGB | rgb(21, 27, 0) |
| HSL | hsl(73, 100%, 5%) |
| OKLCH | oklch(20.8% 0.05 120.4) |
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 #151B00 | 17.66:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #151B00 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #151B00 text on white | 17.66:1 | AAA | Lc 104.4 | Preferred for body text |
| #151B00 text on black | 1.18:1 | 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
#F5F6F0
oklch(97.1% 0.008 114.2)
-
Step 100
100
#E8ECDF
oklch(93.6% 0.018 120.7)
-
Step 200
200
#D6DDC5
oklch(88.6% 0.033 120.3)
-
Step 300
300
#BBC79C
oklch(80.9% 0.06 120.4)
-
Step 400
400
#98AA65
oklch(70.8% 0.095 120.8)
-
Step 500
500
#809438
oklch(63.1% 0.12 120.3)
-
Step 600
600
#697E05
oklch(55.6% 0.131 120.7)
-
Step 700
700
#586A00
oklch(49.2% 0.117 120.6)
-
Step 800
800
#485602
oklch(42.6% 0.1 120)
-
Step 900
900
#3C4710
oklch(37.6% 0.078 120.1)
-
Step 950
950 (this color)
#151B00
oklch(20.8% 0.05 120.4)
#151B00 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) | #1E1900 | 0.019 |
| Deuteranopia (no green cones) | #1D1901 | 0.018 |
| Tritanopia (no blue cones) | #171915 | 0.042 |
| Achromatopsia (no color) | #191919 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #151B00
#151B00
oklch(20.8% 0.05 120.4)
- #1C122B
#1C122B
oklch(20.9% 0.049 300.7)
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 #151B00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Forest Green #002D04 ΔE 0.065
- Dark Brown #341C02 ΔE 0.066
- Very Dark Green #062E03 ΔE 0.068
- Almost Black #070D0D ΔE 0.074
- Rich Navy #001219 ΔE 0.075
- Jet #212529 ΔE 0.078
- Rich Black #0D1B2A ΔE 0.078
- Dark #1B2431 ΔE 0.088
Use #151B00 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.