#23121F
Closest named color: Rich Black (#0D1B2A). oklch(21.2% 0.036 335.9), rgb(35, 18, 31).
Aa
White text reads best on this color (17.83:1).
About this color
#23121F is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.036 and its hue 336°. Its hue sits on the warm side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.049 away. White text reads best on it, at 17.83:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.036) |
| Temperature | warm |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.83:1 |
Values
| HEX | #23121F |
| RGB | rgb(35, 18, 31) |
| HSL | hsl(314, 32%, 10%) |
| OKLCH | oklch(21.2% 0.036 335.9) |
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 #23121F | 17.83:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #23121F | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #23121F text on white | 17.83:1 | AAA | Lc 104.5 | Preferred for body text |
| #23121F text on black | 1.17:1 | 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#EFE7ED
oklch(93.6% 0.012 334.1)
-
Step 200
200
#E4D3DF
oklch(88.4% 0.025 336.1)
-
Step 300
300
#D3B7CB
oklch(80.9% 0.042 336.2)
-
Step 400
400
#BC91B1
oklch(70.7% 0.067 335.6)
-
Step 500
500
#AB759E
oklch(63.1% 0.087 335.7)
-
Step 600
600
#965D89
oklch(55.6% 0.095 335.6)
-
Step 700
700
#804C74
oklch(49.1% 0.089 335.9)
-
Step 800
800
#683F5E
oklch(42.7% 0.073 336.3)
-
Step 900
900
#55364D
oklch(37.8% 0.056 336.6)
-
Step 950
950 (this color)
#23121F
oklch(21.2% 0.036 335.9)
#23121F 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) | #12161F | 0.036 |
| Deuteranopia (no green cones) | #16191E | 0.035 |
| Tritanopia (no blue cones) | #251317 | 0.018 |
| Achromatopsia (no color) | #181818 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23121F
#23121F
oklch(21.2% 0.036 335.9)
- #091E12
#091E12
oklch(21.3% 0.036 156.4)
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 #23121F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.049
- Dark #1B2431 ΔE 0.062
- Jet #212529 ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.065
- Eggplant #380835 ΔE 0.068
- Midnight Purple #280137 ΔE 0.069
- Rich Navy #001219 ΔE 0.071
- Dark Maroon #3C0008 ΔE 0.071
Use #23121F 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.