#1C0109
Closest named color: Very Dark Brown (#1D0200). oklch(15% 0.055 2.5), rgb(28, 1, 9).
Aa
White text reads best on this color (19.85:1).
About this color
#1C0109 is a very dark, muted red. In OKLCH its lightness is 15%, its chroma 0.055 and its hue 3°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.030 away. White text reads best on it, at 19.85:1.
| Hue family | Reds |
| Lightness | very dark (15%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.05:1 |
| White text | 19.85:1 |
Values
| HEX | #1C0109 |
| RGB | rgb(28, 1, 9) |
| HSL | hsl(342, 93%, 6%) |
| OKLCH | oklch(15% 0.055 2.5) |
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 #1C0109 | 19.85:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1C0109 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #1C0109 text on white | 19.85:1 | AAA | Lc 105.5 | Preferred for body text |
| #1C0109 text on black | 1.05:1 | 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
#FBF3F5
oklch(97.1% 0.009 0.1)
-
Step 100
100
#F6E5E9
oklch(93.7% 0.019 1.4)
-
Step 200
200
#EFD0D7
oklch(88.5% 0.036 2.6)
-
Step 300
300
#E6B0BD
oklch(81% 0.065 2.6)
-
Step 400
400
#D7849B
oklch(70.7% 0.105 2.2)
-
Step 500
500
#CA6382
oklch(63.1% 0.134 2.6)
-
Step 600
600
#B5486C
oklch(55.6% 0.145 2.5)
-
Step 700
700
#9B385A
oklch(49% 0.135 2.2)
-
Step 800
800
#7E2F49
oklch(42.6% 0.112 2.6)
-
Step 900
900
#662B3D
oklch(37.7% 0.087 3)
-
Step 950
950 (this color)
#1C0109
oklch(15% 0.055 2.5)
#1C0109 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) | #050609 | 0.063 |
| Deuteranopia (no green cones) | #0D0C08 | 0.057 |
| Tritanopia (no blue cones) | #1F0004 | 0.015 |
| Achromatopsia (no color) | #090909 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C0109
#1C0109
oklch(15% 0.055 2.5)
- #000F0C
#000F0C
oklch(15.1% 0.027 181.1)
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 #1C0109, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.030
- Almost Black #070D0D ΔE 0.065
- Rich Navy #001219 ΔE 0.084
- Dark Maroon #3C0008 ΔE 0.086
- Very Dark Purple #2A0134 ΔE 0.093
- Midnight Purple #280137 ΔE 0.097
- Rich Black #0D1B2A ΔE 0.102
- Deep Brown #410200 ΔE 0.103
Use #1C0109 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.