#280306
Closest named color: Very Dark Brown (#1D0200). oklch(18.2% 0.063 20.2), rgb(40, 3, 6).
Aa
White text reads best on this color (18.98:1).
About this color
#280306 is a very dark, muted red. In OKLCH its lightness is 18%, its chroma 0.063 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.036 away. White text reads best on it, at 18.98:1.
| Hue family | Reds |
| Lightness | very dark (18%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.10:1 |
| White text | 18.98:1 |
Values
| HEX | #280306 |
| RGB | rgb(40, 3, 6) |
| HSL | hsl(355, 86%, 8%) |
| OKLCH | oklch(18.2% 0.063 20.2) |
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 #280306 | 18.98:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #280306 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #280306 text on white | 18.98:1 | AAA | Lc 104.9 | Preferred for body text |
| #280306 text on black | 1.10:1 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E4E4
oklch(93.5% 0.022 17.6)
-
Step 200
200
#F4CFCE
oklch(88.6% 0.042 19.8)
-
Step 300
300
#EDAEAC
oklch(80.9% 0.074 20.9)
-
Step 400
400
#E28081
oklch(70.7% 0.121 19.9)
-
Step 500
500
#D65D61
oklch(63.1% 0.153 20.5)
-
Step 600
600
#C23E48
oklch(55.6% 0.168 20.3)
-
Step 700
700
#A72F3A
oklch(49.2% 0.156 20.1)
-
Step 800
800
#872930
oklch(42.7% 0.128 20.3)
-
Step 900
900
#6D272A
oklch(37.7% 0.1 20.7)
-
Step 950
950 (this color)
#280306
oklch(18.2% 0.063 20.2)
#280306 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) | #0C0B06 | 0.071 |
| Deuteranopia (no green cones) | #161305 | 0.064 |
| Tritanopia (no blue cones) | #2D0004 | 0.013 |
| Achromatopsia (no color) | #101010 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #280306
#280306
oklch(18.2% 0.063 20.2)
- #001617
#001617
oklch(18.2% 0.031 198.6)
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 #280306, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.036
- Dark Maroon #3C0008 ΔE 0.051
- Deep Brown #410200 ΔE 0.065
- Almost Black #070D0D ΔE 0.079
- Dark Brown #341C02 ΔE 0.084
- Mahogany #4A0100 ΔE 0.087
- Dark Plum #3F012C ΔE 0.090
- Very Dark Purple #2A0134 ΔE 0.093
Use #280306 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.