#1B0010
Closest named color: Very Dark Brown (#1D0200). oklch(14.8% 0.063 346), rgb(27, 0, 16).
Aa
White text reads best on this color (19.92:1).
About this color
#1B0010 is a very dark, muted red. In OKLCH its lightness is 15%, its chroma 0.063 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.048 away. White text reads best on it, at 19.92:1.
| Hue family | Reds |
| Lightness | very dark (15%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.05:1 |
| White text | 19.92:1 |
Values
| HEX | #1B0010 |
| RGB | rgb(27, 0, 16) |
| HSL | hsl(324, 100%, 5%) |
| OKLCH | oklch(14.8% 0.063 346) |
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 #1B0010 | 19.92:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1B0010 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #1B0010 text on white | 19.92:1 | AAA | Lc 105.6 | Preferred for body text |
| #1B0010 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
#FBF3F7
oklch(97.1% 0.01 345.4)
-
Step 100
100
#F5E4ED
oklch(93.5% 0.022 344.2)
-
Step 200
200
#EFCFDF
oklch(88.6% 0.041 346.3)
-
Step 300
300
#E5AECB
oklch(81% 0.074 345.9)
-
Step 400
400
#D581B0
oklch(70.6% 0.118 345.9)
-
Step 500
500
#C85F9D
oklch(63.2% 0.151 345.9)
-
Step 600
600
#B34287
oklch(55.6% 0.165 346.1)
-
Step 700
700
#9A3373
oklch(49.2% 0.154 346)
-
Step 800
800
#7D2B5D
oklch(42.6% 0.127 346.3)
-
Step 900
900
#65284C
oklch(37.7% 0.099 346.4)
-
Step 950
950 (this color)
#1B0010
oklch(14.8% 0.063 346)
#1B0010 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) | #020611 | 0.072 |
| Deuteranopia (no green cones) | #090B0F | 0.062 |
| Tritanopia (no blue cones) | #1E0005 | 0.028 |
| Achromatopsia (no color) | #090909 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0010
#1B0010
oklch(14.8% 0.063 346)
- #000F08
#000F08
oklch(14.9% 0.031 165.8)
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 #1B0010, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.048
- Almost Black #070D0D ΔE 0.071
- Very Dark Purple #2A0134 ΔE 0.081
- Midnight Purple #280137 ΔE 0.085
- Rich Navy #001219 ΔE 0.087
- Dark Maroon #3C0008 ΔE 0.094
- Midnight #03012D ΔE 0.094
- Dark Navy Blue #00022E ΔE 0.102
Use #1B0010 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.