#280A03
Closest named color: Very Dark Brown (#1D0200). oklch(19.5% 0.053 37.6), rgb(40, 10, 3).
Aa
White text reads best on this color (18.50:1).
About this color
#280A03 is a very dark, muted red. In OKLCH its lightness is 19%, its chroma 0.053 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.044 away. White text reads best on it, at 18.50:1.
| Hue family | Reds |
| Lightness | very dark (19%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.13:1 |
| White text | 18.50:1 |
Values
| HEX | #280A03 |
| RGB | rgb(40, 10, 3) |
| HSL | hsl(11, 86%, 8%) |
| OKLCH | oklch(19.5% 0.053 37.6) |
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 #280A03 | 18.50:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #280A03 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #280A03 text on white | 18.50:1 | AAA | Lc 104.8 | Preferred for body text |
| #280A03 text on black | 1.13:1 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#EFD2C9
oklch(88.6% 0.035 38)
-
Step 300
300
#E6B3A4
oklch(80.9% 0.063 37)
-
Step 400
400
#D78A73
oklch(70.7% 0.101 37.4)
-
Step 500
500
#CA6A4E
oklch(63% 0.129 37.1)
-
Step 600
600
#B65030
oklch(55.7% 0.141 37.8)
-
Step 700
700
#9C4023
oklch(49.1% 0.13 37.7)
-
Step 800
800
#7F351F
oklch(42.7% 0.108 37.2)
-
Step 900
900
#662F1F
oklch(37.6% 0.084 37)
-
Step 950
950 (this color)
#280A03
oklch(19.5% 0.053 37.6)
#280A03 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) | #120F02 | 0.054 |
| Deuteranopia (no green cones) | #1A1603 | 0.048 |
| Tritanopia (no blue cones) | #2D0408 | 0.024 |
| Achromatopsia (no color) | #131313 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #280A03
#280A03
oklch(19.5% 0.053 37.6)
- #00181F
#00181F
oklch(19.3% 0.035 218.8)
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 #280A03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.044
- Dark Maroon #3C0008 ΔE 0.052
- Deep Brown #410200 ΔE 0.060
- Dark Brown #341C02 ΔE 0.064
- Almost Black #070D0D ΔE 0.076
- Chocolate Brown #411900 ΔE 0.078
- Mahogany #4A0100 ΔE 0.082
- Rich Black #0D1B2A ΔE 0.088
Use #280A03 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.