#28101B
Closest named color: Dark Maroon (#3C0008). oklch(21.4% 0.043 352.5), rgb(40, 16, 27).
Aa
White text reads best on this color (17.79:1).
About this color
#28101B is a very dark, muted red. In OKLCH its lightness is 21%, its chroma 0.043 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.057 away. White text reads best on it, at 17.79:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | muted (0.043) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.18:1 |
| White text | 17.79:1 |
Values
| HEX | #28101B |
| RGB | rgb(40, 16, 27) |
| HSL | hsl(333, 43%, 11%) |
| OKLCH | oklch(21.4% 0.043 352.5) |
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 #28101B | 17.79:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #28101B | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #28101B text on white | 17.79:1 | AAA | Lc 104.4 | Preferred for body text |
| #28101B text on black | 1.18:1 | 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
#F9F4F6
oklch(97.2% 0.006 350.8)
-
Step 100
100
#F2E6EB
oklch(93.6% 0.015 350.1)
-
Step 200
200
#E9D2DB
oklch(88.5% 0.028 352)
-
Step 300
300
#DCB4C4
oklch(81% 0.051 352.3)
-
Step 400
400
#C98BA5
oklch(70.6% 0.082 352.6)
-
Step 500
500
#BA6E8F
oklch(63.1% 0.104 353)
-
Step 600
600
#A5557A
oklch(55.7% 0.114 352.3)
-
Step 700
700
#8D4566
oklch(49.1% 0.105 352.9)
-
Step 800
800
#733953
oklch(42.7% 0.088 353.2)
-
Step 900
900
#5D3145
oklch(37.6% 0.069 352.2)
-
Step 950
950 (this color)
#28101B
oklch(21.4% 0.043 352.5)
#28101B 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) | #13151B | 0.047 |
| Deuteranopia (no green cones) | #19191A | 0.043 |
| Tritanopia (no blue cones) | #2B0F14 | 0.015 |
| Achromatopsia (no color) | #181818 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28101B
#28101B
oklch(21.4% 0.043 352.5)
- #001F17
#001F17
oklch(21.3% 0.041 172.5)
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 #28101B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.061
- Eggplant #380835 ΔE 0.066
- Jet #212529 ΔE 0.067
- Very Dark Purple #2A0134 ΔE 0.067
- Dark Plum #3F012C ΔE 0.069
- Dark #1B2431 ΔE 0.069
- Deep Brown #410200 ΔE 0.070
Use #28101B 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.