#1B040A
Closest named color: Very Dark Brown (#1D0200). oklch(15.6% 0.044 4.7), rgb(27, 4, 10).
Aa
White text reads best on this color (19.65:1).
About this color
#1B040A is a very dark, muted red. In OKLCH its lightness is 16%, its chroma 0.044 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.027 away. White text reads best on it, at 19.65:1.
| Hue family | Reds |
| Lightness | very dark (16%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.06:1 |
| White text | 19.65:1 |
Values
| HEX | #1B040A |
| RGB | rgb(27, 4, 10) |
| HSL | hsl(344, 74%, 6%) |
| OKLCH | oklch(15.6% 0.044 4.7) |
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 #1B040A | 19.65:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1B040A | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #1B040A text on white | 19.65:1 | AAA | Lc 105.6 | Preferred for body text |
| #1B040A 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
#FAF4F5
oklch(97.2% 0.007 5.6)
-
Step 100
100
#F3E6E8
oklch(93.6% 0.014 6.7)
-
Step 200
200
#EBD2D6
oklch(88.6% 0.028 6.7)
-
Step 300
300
#DFB3BC
oklch(80.8% 0.052 4.6)
-
Step 400
400
#CE8B9A
oklch(70.8% 0.084 4.8)
-
Step 500
500
#BF6D81
oklch(63.2% 0.106 4.9)
-
Step 600
600
#AA536A
oklch(55.5% 0.116 4.9)
-
Step 700
700
#924359
oklch(49.1% 0.109 4.4)
-
Step 800
800
#773849
oklch(42.8% 0.09 4.5)
-
Step 900
900
#60313D
oklch(37.8% 0.069 4.6)
-
Step 950
950 (this color)
#1B040A
oklch(15.6% 0.044 4.7)
#1B040A 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) | #08080A | 0.048 |
| Deuteranopia (no green cones) | #0E0D09 | 0.045 |
| Tritanopia (no blue cones) | #1E0206 | 0.012 |
| Achromatopsia (no color) | #0B0B0B | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B040A
#1B040A
oklch(15.6% 0.044 4.7)
- #00100E
#00100E
oklch(15.6% 0.027 185.8)
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 #1B040A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.027
- Almost Black #070D0D ΔE 0.054
- Rich Navy #001219 ΔE 0.073
- Dark Maroon #3C0008 ΔE 0.085
- Rich Black #0D1B2A ΔE 0.091
- Very Dark Purple #2A0134 ΔE 0.092
- Midnight Purple #280137 ΔE 0.096
- Deep Brown #410200 ΔE 0.100
Use #1B040A 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.