#1B0308
Closest named color: Very Dark Brown (#1D0200). oklch(15.3% 0.047 8), rgb(27, 3, 8).
Aa
White text reads best on this color (19.75:1).
About this color
#1B0308 is a very dark, muted red. In OKLCH its lightness is 15%, its chroma 0.047 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.024 away. White text reads best on it, at 19.75:1.
| Hue family | Reds |
| Lightness | very dark (15%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.06:1 |
| White text | 19.75:1 |
Values
| HEX | #1B0308 |
| RGB | rgb(27, 3, 8) |
| HSL | hsl(348, 80%, 6%) |
| OKLCH | oklch(15.3% 0.047 8) |
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 #1B0308 | 19.75:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #1B0308 | 1.06:1 | Fails | Lc 0.0 | Not readable |
| #1B0308 text on white | 19.75:1 | AAA | Lc 105.6 | Preferred for body text |
| #1B0308 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
#FAF3F4
oklch(97% 0.008 7.3)
-
Step 100
100
#F4E6E8
oklch(93.7% 0.015 7.5)
-
Step 200
200
#ECD1D5
oklch(88.4% 0.031 7.6)
-
Step 300
300
#E1B2BA
oklch(80.8% 0.056 7)
-
Step 400
400
#D18996
oklch(70.7% 0.089 7.8)
-
Step 500
500
#C36B7C
oklch(63.2% 0.113 8.5)
-
Step 600
600
#AE5165
oklch(55.6% 0.123 8.4)
-
Step 700
700
#954154
oklch(49.1% 0.114 8.1)
-
Step 800
800
#793645
oklch(42.7% 0.095 7.9)
-
Step 900
900
#622F3A
oklch(37.6% 0.075 7.6)
-
Step 950
950 (this color)
#1B0308
oklch(15.3% 0.047 8)
#1B0308 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) | #070708 | 0.052 |
| Deuteranopia (no green cones) | #0E0C07 | 0.047 |
| Tritanopia (no blue cones) | #1E0105 | 0.011 |
| Achromatopsia (no color) | #0A0A0A | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B0308
#1B0308
oklch(15.3% 0.047 8)
- #000F0E
#000F0E
oklch(15.2% 0.026 190.1)
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 #1B0308, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.024
- Almost Black #070D0D ΔE 0.057
- Rich Navy #001219 ΔE 0.077
- Dark Maroon #3C0008 ΔE 0.086
- Rich Black #0D1B2A ΔE 0.096
- Very Dark Purple #2A0134 ΔE 0.096
- Midnight Purple #280137 ΔE 0.100
- Deep Brown #410200 ΔE 0.101
Use #1B0308 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.