#231925
Closest named color: Rich Black (#0D1B2A). oklch(23.1% 0.027 320.7), rgb(35, 25, 37).
Aa
White text reads best on this color (16.97:1).
About this color
#231925 is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.039 away. White text reads best on it, at 16.97:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 16.97:1 |
Values
| HEX | #231925 |
| RGB | rgb(35, 25, 37) |
| HSL | hsl(290, 19%, 12%) |
| OKLCH | oklch(23.1% 0.027 320.7) |
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 #231925 | 16.97:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #231925 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #231925 text on white | 16.97:1 | AAA | Lc 103.9 | Preferred for body text |
| #231925 text on black | 1.23:1 | 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
#F7F4F7
oklch(97% 0.005 325.6)
-
Step 100
100
#EDE8EE
oklch(93.7% 0.01 320.5)
-
Step 200
200
#DFD5E0
oklch(88.4% 0.018 323)
-
Step 300
300
#CABACE
oklch(80.8% 0.033 319.5)
-
Step 400
400
#B097B4
oklch(70.8% 0.05 321.6)
-
Step 500
500
#9C7DA2
oklch(63.2% 0.065 320.8)
-
Step 600
600
#86668D
oklch(55.6% 0.07 320.2)
-
Step 700
700
#725478
oklch(49.1% 0.067 320.7)
-
Step 800
800
#5D4561
oklch(42.7% 0.054 321.6)
-
Step 900
900
#4C3A50
oklch(37.7% 0.044 320.1)
-
Step 950
950 (this color)
#231925
oklch(23.1% 0.027 320.7)
#231925 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) | #181C25 | 0.023 |
| Deuteranopia (no green cones) | #1A1D25 | 0.021 |
| Tritanopia (no blue cones) | #231A1D | 0.017 |
| Achromatopsia (no color) | #1C1C1C | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #231925
#231925
oklch(23.1% 0.027 320.7)
- #162014
#162014
oklch(23% 0.027 140.4)
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 #231925, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.039
- Dark #1B2431 ΔE 0.039
- Jet #212529 ΔE 0.040
- Oxford Blue #1B263B ΔE 0.053
- Dark Brown #341C02 ΔE 0.070
- Eggplant #380835 ΔE 0.070
- Very Dark Purple #2A0134 ΔE 0.075
- Rich Navy #001219 ΔE 0.076
Use #231925 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.