#151C04
Closest named color: Dark Brown (#341C02). oklch(21.3% 0.044 123.2), rgb(21, 28, 4).
Aa
White text reads best on this color (17.50:1).
About this color
#151C04 is a very dark, muted brown. In OKLCH its lightness is 21%, its chroma 0.044 and its hue 123°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.064 away. White text reads best on it, at 17.50:1.
| Hue family | Browns |
| Lightness | very dark (21%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.19:1 |
| White text | 17.50:1 |
Values
| HEX | #151C04 |
| RGB | rgb(21, 28, 4) |
| HSL | hsl(78, 75%, 6%) |
| OKLCH | oklch(21.3% 0.044 123.2) |
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 #151C04 | 17.50:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #151C04 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #151C04 text on white | 17.50:1 | AAA | Lc 104.3 | Preferred for body text |
| #151C04 text on black | 1.19:1 | 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
#F4F6F1
oklch(97% 0.007 124.4)
-
Step 100
100
#E8ECE1
oklch(93.7% 0.015 123)
-
Step 200
200
#D5DDC8
oklch(88.6% 0.03 124)
-
Step 300
300
#BAC7A2
oklch(81% 0.052 123.3)
-
Step 400
400
#96A96F
oklch(70.6% 0.083 123.3)
-
Step 500
500
#7D9448
oklch(63.1% 0.106 123.3)
-
Step 600
600
#667E28
oklch(55.6% 0.115 123.5)
-
Step 700
700
#556A1A
oklch(49.1% 0.107 123.3)
-
Step 800
800
#465718
oklch(42.8% 0.089 123.2)
-
Step 900
900
#3A471B
oklch(37.5% 0.068 123.4)
-
Step 950
950 (this color)
#151C04
oklch(21.3% 0.044 123.2)
#151C04 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) | #1E1A02 | 0.017 |
| Deuteranopia (no green cones) | #1D1905 | 0.019 |
| Tritanopia (no blue cones) | #171A17 | 0.037 |
| Achromatopsia (no color) | #191919 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #151C04
#151C04
oklch(21.3% 0.044 123.2)
- #1D1329
#1D1329
oklch(21.1% 0.044 303.8)
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 #151C04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.064
- Dark Forest Green #002D04 ΔE 0.064
- Very Dark Green #062E03 ΔE 0.067
- Jet #212529 ΔE 0.070
- Rich Black #0D1B2A ΔE 0.072
- Rich Navy #001219 ΔE 0.072
- Almost Black #070D0D ΔE 0.073
- Dark #1B2431 ΔE 0.080
Use #151C04 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.