#22101A
Closest named color: Rich Black (#0D1B2A). oklch(20.3% 0.035 346.2), rgb(34, 16, 26).
Aa
White text reads best on this color (18.14:1).
About this color
#22101A is a very dark, muted red. In OKLCH its lightness is 20%, its chroma 0.035 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.054 away. White text reads best on it, at 18.14:1.
| Hue family | Reds |
| Lightness | very dark (20%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.15:1 |
| White text | 18.14:1 |
Values
| HEX | #22101A |
| RGB | rgb(34, 16, 26) |
| HSL | hsl(327, 36%, 10%) |
| OKLCH | oklch(20.3% 0.035 346.2) |
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 #22101A | 18.14:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #22101A | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #22101A text on white | 18.14:1 | AAA | Lc 104.8 | Preferred for body text |
| #22101A text on black | 1.15:1 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#F0E7EB
oklch(93.6% 0.011 348.4)
-
Step 200
200
#E5D3DC
oklch(88.4% 0.023 345.8)
-
Step 300
300
#D5B6C6
oklch(80.8% 0.041 345.6)
-
Step 400
400
#C090A9
oklch(70.7% 0.067 346.3)
-
Step 500
500
#AF7594
oklch(63.2% 0.083 346.5)
-
Step 600
600
#9A5D7E
oklch(55.7% 0.091 346.8)
-
Step 700
700
#834C6B
oklch(49.1% 0.085 345.8)
-
Step 800
800
#6B3F57
oklch(42.8% 0.07 346.6)
-
Step 900
900
#573548
oklch(37.7% 0.056 345.5)
-
Step 950
950 (this color)
#22101A
oklch(20.3% 0.035 346.2)
#22101A 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) | #11141A | 0.037 |
| Deuteranopia (no green cones) | #16171A | 0.034 |
| Tritanopia (no blue cones) | #241014 | 0.013 |
| Achromatopsia (no color) | #161616 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #22101A
#22101A
oklch(20.3% 0.035 346.2)
- #051C13
#051C13
oklch(20.4% 0.035 165)
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 #22101A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.054
- Very Dark Brown #1D0200 ΔE 0.066
- Almost Black #070D0D ΔE 0.067
- Rich Navy #001219 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.069
- Jet #212529 ΔE 0.070
- Dark #1B2431 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.070
Use #22101A 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.