#28100F
Closest named color: Dark Maroon (#3C0008). oklch(20.9% 0.04 23.6), rgb(40, 16, 15).
Aa
White text reads best on this color (17.92:1).
About this color
#28100F is a very dark, muted red. In OKLCH its lightness is 21%, its chroma 0.040 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.053 away. White text reads best on it, at 17.92:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.17:1 |
| White text | 17.92:1 |
Values
| HEX | #28100F |
| RGB | rgb(40, 16, 15) |
| HSL | hsl(2, 45%, 11%) |
| OKLCH | oklch(20.9% 0.04 23.6) |
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 #28100F | 17.92:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #28100F | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #28100F text on white | 17.92:1 | AAA | Lc 104.5 | Preferred for body text |
| #28100F text on black | 1.17:1 | 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
#FAF4F3
oklch(97.2% 0.007 28.8)
-
Step 100
100
#F3E6E5
oklch(93.5% 0.014 22.8)
-
Step 200
200
#EAD3D1
oklch(88.5% 0.026 23.6)
-
Step 300
300
#DEB5B2
oklch(80.9% 0.048 23.1)
-
Step 400
400
#CC8E8A
oklch(70.7% 0.076 23.3)
-
Step 500
500
#BE716D
oklch(63.2% 0.098 23.4)
-
Step 600
600
#A95855
oklch(55.6% 0.107 23.3)
-
Step 700
700
#914845
oklch(49.2% 0.099 23.8)
-
Step 800
800
#753B39
oklch(42.6% 0.082 23.1)
-
Step 900
900
#5F3331
oklch(37.6% 0.064 23.3)
-
Step 950
950 (this color)
#28100F
oklch(20.9% 0.04 23.6)
#28100F 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) | #15140F | 0.043 |
| Deuteranopia (no green cones) | #1B190F | 0.040 |
| Tritanopia (no blue cones) | #2C0D10 | 0.012 |
| Achromatopsia (no color) | #171717 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28100F
#28100F
oklch(20.9% 0.04 23.6)
- #001D20
#001D20
oklch(21% 0.036 204.3)
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 #28100F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.053
- Dark Brown #341C02 ΔE 0.057
- Very Dark Brown #1D0200 ΔE 0.060
- Deep Brown #410200 ΔE 0.062
- Rich Black #0D1B2A ΔE 0.070
- Jet #212529 ΔE 0.071
- Chocolate Brown #411900 ΔE 0.072
- Almost Black #070D0D ΔE 0.076
Use #28100F 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.