#231A23
Closest named color: Jet (#212529). oklch(23.3% 0.022 326.2), rgb(35, 26, 35).
Aa
White text reads best on this color (16.88:1).
About this color
#231A23 is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.037 away. White text reads best on it, at 16.88:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.24:1 |
| White text | 16.88:1 |
Values
| HEX | #231A23 |
| RGB | rgb(35, 26, 35) |
| HSL | hsl(300, 15%, 12%) |
| OKLCH | oklch(23.3% 0.022 326.2) |
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 #231A23 | 16.88:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #231A23 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #231A23 text on white | 16.88:1 | AAA | Lc 103.8 | Preferred for body text |
| #231A23 text on black | 1.24:1 | 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
#F7F5F7
oklch(97.2% 0.003 325.6)
-
Step 100
100
#EDE8EC
oklch(93.6% 0.008 332.1)
-
Step 200
200
#DED6DE
oklch(88.5% 0.014 325.7)
-
Step 300
300
#CABBCA
oklch(80.9% 0.027 325.8)
-
Step 400
400
#AF98AE
oklch(70.7% 0.041 327.4)
-
Step 500
500
#9B7F9B
oklch(63.2% 0.053 326.2)
-
Step 600
600
#856885
oklch(55.6% 0.056 326.3)
-
Step 700
700
#715671
oklch(49.1% 0.054 326.4)
-
Step 800
800
#5C475C
oklch(42.8% 0.043 326.3)
-
Step 900
900
#4B3B4B
oklch(37.6% 0.034 326.2)
-
Step 950
950 (this color)
#231A23
oklch(23.3% 0.022 326.2)
#231A23 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) | #191C23 | 0.020 |
| Deuteranopia (no green cones) | #1B1D23 | 0.018 |
| Tritanopia (no blue cones) | #241B1D | 0.013 |
| Achromatopsia (no color) | #1D1D1D | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231A23
#231A23
oklch(23.3% 0.022 326.2)
- #172017
#172017
oklch(23.1% 0.021 144.8)
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 #231A23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.037
- Dark #1B2431 ΔE 0.038
- Rich Black #0D1B2A ΔE 0.039
- Oxford Blue #1B263B ΔE 0.053
- Dark Brown #341C02 ΔE 0.065
- Eggplant #380835 ΔE 0.075
- Rich Navy #001219 ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.078
Use #231A23 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.