#28101E
Closest named color: Rich Black (#0D1B2A). oklch(21.5% 0.046 345.6), rgb(40, 16, 30).
Aa
White text reads best on this color (17.75:1).
About this color
#28101E is a very dark, muted red. In OKLCH its lightness is 22%, its chroma 0.046 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.060 away. White text reads best on it, at 17.75:1.
| Hue family | Reds |
| Lightness | very dark (22%) |
| Chroma | muted (0.046) |
| Temperature | warm |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.75:1 |
Values
| HEX | #28101E |
| RGB | rgb(40, 16, 30) |
| HSL | hsl(325, 43%, 11%) |
| OKLCH | oklch(21.5% 0.046 345.6) |
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 #28101E | 17.75:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #28101E | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #28101E text on white | 17.75:1 | AAA | Lc 104.4 | Preferred for body text |
| #28101E 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
#F2E6EC
oklch(93.6% 0.015 345.6)
-
Step 200
200
#E9D2DD
oklch(88.6% 0.029 347.1)
-
Step 300
300
#DBB3C8
oklch(80.8% 0.054 345.5)
-
Step 400
400
#C88BAC
oklch(70.7% 0.086 345.9)
-
Step 500
500
#B96D98
oklch(63.2% 0.11 345.7)
-
Step 600
600
#A45483
oklch(55.7% 0.12 345.5)
-
Step 700
700
#8C446E
oklch(49.1% 0.111 345.9)
-
Step 800
800
#72385A
oklch(42.7% 0.093 345.6)
-
Step 900
900
#5C314A
oklch(37.7% 0.071 345.2)
-
Step 950
950 (this color)
#28101E
oklch(21.5% 0.046 345.6)
#28101E 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) | #12161E | 0.049 |
| Deuteranopia (no green cones) | #181A1D | 0.046 |
| Tritanopia (no blue cones) | #2B1015 | 0.019 |
| Achromatopsia (no color) | #181818 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28101E
#28101E
oklch(21.5% 0.046 345.6)
- #002014
#002014
oklch(21.6% 0.046 164.5)
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 #28101E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.060
- Dark Maroon #3C0008 ΔE 0.060
- Eggplant #380835 ΔE 0.061
- Very Dark Purple #2A0134 ΔE 0.062
- Dark Plum #3F012C ΔE 0.065
- Midnight Purple #280137 ΔE 0.067
- Aubergine #3D0734 ΔE 0.067
- Jet #212529 ΔE 0.067
Use #28101E 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.