#1B090A
Closest named color: Very Dark Brown (#1D0200). oklch(16.9% 0.032 17.4), rgb(27, 9, 10).
Aa
White text reads best on this color (19.26:1).
About this color
#1B090A is a very dark, muted red. In OKLCH its lightness is 17%, its chroma 0.032 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.031 away. White text reads best on it, at 19.26:1.
| Hue family | Reds |
| Lightness | very dark (17%) |
| Chroma | muted (0.032) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.09:1 |
| White text | 19.26:1 |
Values
| HEX | #1B090A |
| RGB | rgb(27, 9, 10) |
| HSL | hsl(357, 50%, 7%) |
| OKLCH | oklch(16.9% 0.032 17.4) |
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 #1B090A | 19.26:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1B090A | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #1B090A text on white | 19.26:1 | AAA | Lc 105.5 | Preferred for body text |
| #1B090A text on black | 1.09:1 | 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F1E7E7
oklch(93.6% 0.011 17.4)
-
Step 200
200
#E7D4D4
oklch(88.5% 0.021 17.6)
-
Step 300
300
#D8B7B8
oklch(80.8% 0.038 15.9)
-
Step 400
400
#C49293
oklch(70.8% 0.061 17.4)
-
Step 500
500
#B37678
oklch(63% 0.077 17.3)
-
Step 600
600
#9E5E61
oklch(55.5% 0.084 17.1)
-
Step 700
700
#874E50
oklch(49.1% 0.077 18)
-
Step 800
800
#6E4042
oklch(42.7% 0.064 17.3)
-
Step 900
900
#593638
oklch(37.6% 0.05 16)
-
Step 950
950 (this color)
#1B090A
oklch(16.9% 0.032 17.4)
#1B090A 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) | #0D0C0A | 0.034 |
| Deuteranopia (no green cones) | #11100A | 0.033 |
| Tritanopia (no blue cones) | #1E0709 | 0.009 |
| Achromatopsia (no color) | #0E0E0E | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B090A
#1B090A
oklch(16.9% 0.032 17.4)
- #001314
#001314
oklch(17% 0.029 198.9)
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 #1B090A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.031
- Almost Black #070D0D ΔE 0.045
- Rich Navy #001219 ΔE 0.062
- Rich Black #0D1B2A ΔE 0.077
- Dark Maroon #3C0008 ΔE 0.081
- Dark Brown #341C02 ΔE 0.093
- Deep Brown #410200 ΔE 0.094
- Very Dark Purple #2A0134 ΔE 0.096
Use #1B090A 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.