#1D0300
Closest named color: Very Dark Brown (#1D0200). oklch(15.4% 0.052 37), rgb(29, 3, 0).
Aa
White text reads best on this color (19.71:1).
About this color
#1D0300 is a very dark, muted red. In OKLCH its lightness is 15%, its chroma 0.052 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.004 away. White text reads best on it, at 19.71:1.
| Hue family | Reds |
| Lightness | very dark (15%) |
| Chroma | muted (0.052) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.06:1 |
| White text | 19.71:1 |
Values
| HEX | #1D0300 |
| RGB | rgb(29, 3, 0) |
| HSL | hsl(6, 100%, 6%) |
| OKLCH | oklch(15.4% 0.052 37) |
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 #1D0300 | 19.71:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1D0300 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #1D0300 text on white | 19.71:1 | AAA | Lc 105.5 | Preferred for body text |
| #1D0300 text on black | 1.06:1 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EED2CA
oklch(88.5% 0.033 36.5)
-
Step 300
300
#E5B4A5
oklch(81% 0.061 37.7)
-
Step 400
400
#D68B75
oklch(70.8% 0.098 37.1)
-
Step 500
500
#C96C51
oklch(63.2% 0.125 37)
-
Step 600
600
#B45134
oklch(55.6% 0.136 37)
-
Step 700
700
#9B4127
oklch(49.1% 0.127 36.8)
-
Step 800
800
#7E3622
oklch(42.7% 0.105 36.4)
-
Step 900
900
#653020
oklch(37.6% 0.081 37.6)
-
Step 950
950 (this color)
#1D0300
oklch(15.4% 0.052 37)
#1D0300 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) | #090700 | 0.053 |
| Deuteranopia (no green cones) | #100D00 | 0.048 |
| Tritanopia (no blue cones) | #210002 | 0.018 |
| Achromatopsia (no color) | #0B0B0B | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D0300
#1D0300
oklch(15.4% 0.052 37)
- #000F14
#000F14
oklch(15.5% 0.028 217.4)
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 #1D0300, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.004
- Almost Black #070D0D ΔE 0.061
- Dark Maroon #3C0008 ΔE 0.083
- Rich Navy #001219 ΔE 0.084
- Deep Brown #410200 ΔE 0.095
- Dark Brown #341C02 ΔE 0.103
- Rich Black #0D1B2A ΔE 0.105
- Very Dark Purple #2A0134 ΔE 0.116
Use #1D0300 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.