#23161B
Closest named color: Rich Black (#0D1B2A). oklch(21.9% 0.023 354.3), rgb(35, 22, 27).
Aa
White text reads best on this color (17.47:1).
About this color
#23161B is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.046 away. White text reads best on it, at 17.47:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.47:1 |
Values
| HEX | #23161B |
| RGB | rgb(35, 22, 27) |
| HSL | hsl(337, 23%, 11%) |
| OKLCH | oklch(21.9% 0.023 354.3) |
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 #23161B | 17.47:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #23161B | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #23161B text on white | 17.47:1 | AAA | Lc 104.3 | Preferred for body text |
| #23161B text on black | 1.20:1 | 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
#F8F4F5
oklch(97.1% 0.004 360)
-
Step 100
100
#EEE8EA
oklch(93.6% 0.007 354.8)
-
Step 200
200
#E2D5DA
oklch(88.5% 0.016 352)
-
Step 300
300
#D0BAC2
oklch(81% 0.027 353.7)
-
Step 400
400
#B796A2
oklch(70.7% 0.043 354.4)
-
Step 500
500
#A57C8B
oklch(63.1% 0.055 355)
-
Step 600
600
#906575
oklch(55.6% 0.06 355.1)
-
Step 700
700
#7A5463
oklch(49.2% 0.055 353.9)
-
Step 800
800
#644450
oklch(42.6% 0.047 355.1)
-
Step 900
900
#513A43
oklch(37.7% 0.035 353.6)
-
Step 950
950 (this color)
#23161B
oklch(21.9% 0.023 354.3)
#23161B 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) | #17181B | 0.025 |
| Deuteranopia (no green cones) | #1A1A1B | 0.022 |
| Tritanopia (no blue cones) | #251618 | 0.007 |
| Achromatopsia (no color) | #1A1A1A | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23161B
#23161B
oklch(21.9% 0.023 354.3)
- #0F1E1A
#0F1E1A
oklch(22% 0.022 175.4)
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 #23161B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.046
- Jet #212529 ΔE 0.051
- Dark #1B2431 ΔE 0.054
- Dark Brown #341C02 ΔE 0.062
- Oxford Blue #1B263B ΔE 0.070
- Rich Navy #001219 ΔE 0.070
- Dark Maroon #3C0008 ΔE 0.071
- Almost Black #070D0D ΔE 0.074
Use #23161B 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.