#23101D
Closest named color: Rich Black (#0D1B2A). oklch(20.6% 0.039 339.9), rgb(35, 16, 29).
Aa
White text reads best on this color (18.05:1).
About this color
#23101D is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.039 and its hue 340°. 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 18.05:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.05:1 |
Values
| HEX | #23101D |
| RGB | rgb(35, 16, 29) |
| HSL | hsl(319, 37%, 10%) |
| OKLCH | oklch(20.6% 0.039 339.9) |
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 #23101D | 18.05:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #23101D | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #23101D text on white | 18.05:1 | AAA | Lc 104.7 | Preferred for body text |
| #23101D 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
#F8F4F7
oklch(97.1% 0.006 334)
-
Step 100
100
#F0E7ED
oklch(93.7% 0.013 337.5)
-
Step 200
200
#E5D3DE
oklch(88.5% 0.025 340.3)
-
Step 300
300
#D6B6CA
oklch(81% 0.045 340.3)
-
Step 400
400
#C08FAF
oklch(70.7% 0.073 339.9)
-
Step 500
500
#AF739B
oklch(63.1% 0.092 340)
-
Step 600
600
#9A5A86
oklch(55.5% 0.102 339.7)
-
Step 700
700
#844A72
oklch(49.2% 0.095 339.7)
-
Step 800
800
#6B3D5C
oklch(42.7% 0.078 340.3)
-
Step 900
900
#57344C
oklch(37.6% 0.062 339.4)
-
Step 950
950 (this color)
#23101D
oklch(20.6% 0.039 339.9)
#23101D 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) | #11141D | 0.039 |
| Deuteranopia (no green cones) | #16171C | 0.035 |
| Tritanopia (no blue cones) | #251015 | 0.017 |
| Achromatopsia (no color) | #161616 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23101D
#23101D
oklch(20.6% 0.039 339.9)
- #051D11
#051D11
oklch(20.7% 0.039 159)
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 #23101D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.053
- Very Dark Purple #2A0134 ΔE 0.064
- Midnight Purple #280137 ΔE 0.068
- Dark #1B2431 ΔE 0.068
- Jet #212529 ΔE 0.069
- Dark Maroon #3C0008 ΔE 0.069
- Eggplant #380835 ΔE 0.070
- Rich Navy #001219 ΔE 0.071
Use #23101D 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.