#1D0401
Closest named color: Very Dark Brown (#1D0200). oklch(15.7% 0.048 35.5), rgb(29, 4, 1).
Aa
White text reads best on this color (19.62:1).
About this color
#1D0401 is a very dark, muted red. In OKLCH its lightness is 16%, its chroma 0.048 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.008 away. White text reads best on it, at 19.62:1.
| Hue family | Reds |
| Lightness | very dark (16%) |
| Chroma | muted (0.048) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.07:1 |
| White text | 19.62:1 |
Values
| HEX | #1D0401 |
| RGB | rgb(29, 4, 1) |
| HSL | hsl(6, 93%, 6%) |
| OKLCH | oklch(15.7% 0.048 35.5) |
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 #1D0401 | 19.62:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1D0401 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #1D0401 text on white | 19.62:1 | AAA | Lc 105.5 | Preferred for body text |
| #1D0401 text on black | 1.07:1 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EDD2CB
oklch(88.4% 0.032 34.9)
-
Step 300
300
#E3B4A8
oklch(80.9% 0.058 34.7)
-
Step 400
400
#D38C79
oklch(70.7% 0.092 35.7)
-
Step 500
500
#C66E57
oklch(63.2% 0.117 35.6)
-
Step 600
600
#B1543C
oklch(55.7% 0.127 35.6)
-
Step 700
700
#98442E
oklch(49.2% 0.118 35.7)
-
Step 800
800
#7B3827
oklch(42.6% 0.098 35.4)
-
Step 900
900
#643124
oklch(37.7% 0.077 35.3)
-
Step 950
950 (this color)
#1D0401
oklch(15.7% 0.048 35.5)
#1D0401 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) | #0A0801 | 0.050 |
| Deuteranopia (no green cones) | #110E01 | 0.045 |
| Tritanopia (no blue cones) | #210103 | 0.018 |
| Achromatopsia (no color) | #0B0B0B | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D0401
#1D0401
oklch(15.7% 0.048 35.5)
- #001014
#001014
oklch(15.9% 0.028 212.7)
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 #1D0401, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.008
- Almost Black #070D0D ΔE 0.058
- Rich Navy #001219 ΔE 0.081
- Dark Maroon #3C0008 ΔE 0.082
- Deep Brown #410200 ΔE 0.093
- Dark Brown #341C02 ΔE 0.100
- Rich Black #0D1B2A ΔE 0.100
- Very Dark Purple #2A0134 ΔE 0.113
Use #1D0401 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.