#23131D
Closest named color: Rich Black (#0D1B2A). oklch(21.3% 0.032 342.1), rgb(35, 19, 29).
Aa
White text reads best on this color (17.76:1).
About this color
#23131D is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.032 and its hue 342°. Its hue sits on the warm side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.048 away. White text reads best on it, at 17.76:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.032) |
| Temperature | warm |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.76:1 |
Values
| HEX | #23131D |
| RGB | rgb(35, 19, 29) |
| HSL | hsl(323, 30%, 11%) |
| OKLCH | oklch(21.3% 0.032 342.1) |
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 #23131D | 17.76:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #23131D | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #23131D text on white | 17.76:1 | AAA | Lc 104.5 | Preferred for body text |
| #23131D 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EC
oklch(93.6% 0.011 339.3)
-
Step 200
200
#E3D4DD
oklch(88.5% 0.02 340.7)
-
Step 300
300
#D3B8C7
oklch(81% 0.037 343.4)
-
Step 400
400
#BC92AB
oklch(70.7% 0.061 342.3)
-
Step 500
500
#AA7796
oklch(63.1% 0.076 342.4)
-
Step 600
600
#955F81
oklch(55.5% 0.084 341.9)
-
Step 700
700
#7F4F6D
oklch(49.2% 0.077 342.2)
-
Step 800
800
#674159
oklch(42.8% 0.063 341.8)
-
Step 900
900
#543749
oklch(37.7% 0.05 342)
-
Step 950
950 (this color)
#23131D
oklch(21.3% 0.032 342.1)
#23131D 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) | #14161D | 0.032 |
| Deuteranopia (no green cones) | #18191D | 0.029 |
| Tritanopia (no blue cones) | #251317 | 0.013 |
| Achromatopsia (no color) | #181818 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23131D
#23131D
oklch(21.3% 0.032 342.1)
- #0A1D14
#0A1D14
oklch(21.1% 0.031 161.5)
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 #23131D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.048
- Jet #212529 ΔE 0.060
- Dark #1B2431 ΔE 0.060
- Dark Maroon #3C0008 ΔE 0.070
- Rich Navy #001219 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.071
- Dark Brown #341C02 ΔE 0.072
- Eggplant #380835 ΔE 0.072
Use #23131D 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.