#23111B
Closest named color: Rich Black (#0D1B2A). oklch(20.8% 0.034 346.1), rgb(35, 17, 27).
Aa
White text reads best on this color (17.98:1).
About this color
#23111B is a very dark, muted red. In OKLCH its lightness is 21%, its chroma 0.034 and its hue 346°. Its hue sits on the warm side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.053 away. White text reads best on it, at 17.98:1.
| Hue family | Reds |
| Lightness | very dark (21%) |
| Chroma | muted (0.034) |
| Temperature | warm |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 17.98:1 |
Values
| HEX | #23111B |
| RGB | rgb(35, 17, 27) |
| HSL | hsl(327, 35%, 10%) |
| OKLCH | oklch(20.8% 0.034 346.1) |
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 #23111B | 17.98:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #23111B | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #23111B text on white | 17.98:1 | AAA | Lc 104.6 | Preferred for body text |
| #23111B 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
#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
#D5B7C6
oklch(81% 0.04 346.4)
-
Step 400
400
#BF91A9
oklch(70.7% 0.064 346.2)
-
Step 500
500
#AE7594
oklch(63.1% 0.082 345.9)
-
Step 600
600
#995D7E
oklch(55.6% 0.09 346.3)
-
Step 700
700
#834C6B
oklch(49.1% 0.085 345.8)
-
Step 800
800
#6A3F57
oklch(42.7% 0.069 345.8)
-
Step 900
900
#573648
oklch(37.9% 0.054 346.1)
-
Step 950
950 (this color)
#23111B
oklch(20.8% 0.034 346.1)
#23111B 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) | #12151B | 0.037 |
| Deuteranopia (no green cones) | #17181B | 0.033 |
| Tritanopia (no blue cones) | #251115 | 0.013 |
| Achromatopsia (no color) | #171717 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23111B
#23111B
oklch(20.8% 0.034 346.1)
- #061D14
#061D14
oklch(20.9% 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 #23111B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.053
- Jet #212529 ΔE 0.066
- Dark #1B2431 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.067
- Very Dark Brown #1D0200 ΔE 0.069
- Rich Navy #001219 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.070
- Almost Black #070D0D ΔE 0.070
Use #23111B 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.