#1C0311
Closest named color: Very Dark Brown (#1D0200). oklch(15.9% 0.053 347.9), rgb(28, 3, 17).
Aa
White text reads best on this color (19.61:1).
About this color
#1C0311 is a very dark, muted red. In OKLCH its lightness is 16%, its chroma 0.053 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.043 away. White text reads best on it, at 19.61:1.
| Hue family | Reds |
| Lightness | very dark (16%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.07:1 |
| White text | 19.61:1 |
Values
| HEX | #1C0311 |
| RGB | rgb(28, 3, 17) |
| HSL | hsl(326, 81%, 6%) |
| OKLCH | oklch(15.9% 0.053 347.9) |
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 #1C0311 | 19.61:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1C0311 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #1C0311 text on white | 19.61:1 | AAA | Lc 105.5 | Preferred for body text |
| #1C0311 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
#FAF3F6
oklch(97% 0.008 349.2)
-
Step 100
100
#F4E5EC
oklch(93.6% 0.019 347.4)
-
Step 200
200
#ECD0DD
oklch(88.5% 0.036 348.1)
-
Step 300
300
#E0B1C8
oklch(80.9% 0.062 347.6)
-
Step 400
400
#CF87AC
oklch(70.8% 0.1 347.8)
-
Step 500
500
#C06797
oklch(63% 0.127 347.8)
-
Step 600
600
#AC4C82
oklch(55.6% 0.14 347.7)
-
Step 700
700
#933D6E
oklch(49.1% 0.129 347.6)
-
Step 800
800
#773359
oklch(42.6% 0.106 347.9)
-
Step 900
900
#612D49
oklch(37.7% 0.084 348.4)
-
Step 950
950 (this color)
#1C0311
oklch(15.9% 0.053 347.9)
#1C0311 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) | #050911 | 0.059 |
| Deuteranopia (no green cones) | #0C0D10 | 0.052 |
| Tritanopia (no blue cones) | #1F0308 | 0.021 |
| Achromatopsia (no color) | #0C0C0C | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C0311
#1C0311
oklch(15.9% 0.053 347.9)
- #00110A
#00110A
oklch(15.8% 0.032 167.7)
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 #1C0311, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.043
- Almost Black #070D0D ΔE 0.062
- Rich Navy #001219 ΔE 0.076
- Very Dark Purple #2A0134 ΔE 0.078
- Midnight Purple #280137 ΔE 0.081
- Dark Maroon #3C0008 ΔE 0.085
- Rich Black #0D1B2A ΔE 0.089
- Midnight #03012D ΔE 0.093
Use #1C0311 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.