#28100A
Closest named color: Dark Brown (#341C02). oklch(20.8% 0.042 35.1), rgb(40, 16, 10).
Aa
White text reads best on this color (17.96:1).
About this color
#28100A is a very dark, muted red. In OKLCH its lightness is 21%, its chroma 0.042 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.053 away. White text reads best on it, at 17.96:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | muted (0.042) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.16:1 |
| White text | 17.96:1 |
Values
| HEX | #28100A |
| RGB | rgb(40, 16, 10) |
| HSL | hsl(12, 60%, 10%) |
| OKLCH | oklch(20.8% 0.042 35.1) |
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 #28100A | 17.96:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #28100A | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #28100A text on white | 17.96:1 | AAA | Lc 104.6 | Preferred for body text |
| #28100A text on black | 1.16:1 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F3E7E3
oklch(93.6% 0.014 39.4)
-
Step 200
200
#EBD3CD
oklch(88.5% 0.028 34.3)
-
Step 300
300
#DFB6AB
oklch(81% 0.05 35.5)
-
Step 400
400
#CD8F7F
oklch(70.7% 0.08 35)
-
Step 500
500
#BF725F
oklch(63.2% 0.102 34.7)
-
Step 600
600
#AA5945
oklch(55.6% 0.111 34.9)
-
Step 700
700
#924937
oklch(49.2% 0.103 34.9)
-
Step 800
800
#763C2E
oklch(42.7% 0.085 34.6)
-
Step 900
900
#603429
oklch(37.8% 0.066 34.9)
-
Step 950
950 (this color)
#28100A
oklch(20.8% 0.042 35.1)
#28100A 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) | #161409 | 0.042 |
| Deuteranopia (no green cones) | #1C190A | 0.039 |
| Tritanopia (no blue cones) | #2C0C0F | 0.018 |
| Achromatopsia (no color) | #171717 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28100A
#28100A
oklch(20.8% 0.042 35.1)
- #001C22
#001C22
oklch(20.8% 0.037 213.9)
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 #28100A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.053
- Dark Maroon #3C0008 ΔE 0.054
- Very Dark Brown #1D0200 ΔE 0.058
- Deep Brown #410200 ΔE 0.061
- Chocolate Brown #411900 ΔE 0.070
- Jet #212529 ΔE 0.074
- Rich Black #0D1B2A ΔE 0.074
- Almost Black #070D0D ΔE 0.076
Use #28100A 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.