#1C1928
Closest named color: Rich Black (#0D1B2A). oklch(22.4% 0.029 293.1), rgb(28, 25, 40).
Aa
White text reads best on this color (17.22:1).
About this color
#1C1928 is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.025 away. White text reads best on it, at 17.22:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.22:1 |
Values
| HEX | #1C1928 |
| RGB | rgb(28, 25, 40) |
| HSL | hsl(252, 23%, 13%) |
| OKLCH | oklch(22.4% 0.029 293.1) |
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 #1C1928 | 17.22:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #1C1928 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #1C1928 text on white | 17.22:1 | AAA | Lc 104.1 | Preferred for body text |
| #1C1928 text on black | 1.21:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#EAE9F0
oklch(93.7% 0.009 292.8)
-
Step 200
200
#D9D7E5
oklch(88.5% 0.019 292.6)
-
Step 300
300
#C1BDD5
oklch(80.9% 0.034 293.3)
-
Step 400
400
#A19BC0
oklch(70.7% 0.054 292.4)
-
Step 500
500
#8B82B1
oklch(63.2% 0.07 293.1)
-
Step 600
600
#756B9C
oklch(55.6% 0.076 293.1)
-
Step 700
700
#625986
oklch(49.1% 0.072 292.7)
-
Step 800
800
#50496D
oklch(42.8% 0.059 292.6)
-
Step 900
900
#423D58
oklch(37.7% 0.046 292.5)
-
Step 950
950 (this color)
#1C1928
oklch(22.4% 0.029 293.1)
#1C1928 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) | #151B29 | 0.014 |
| Deuteranopia (no green cones) | #161B28 | 0.012 |
| Tritanopia (no blue cones) | #1A1B1E | 0.024 |
| Achromatopsia (no color) | #1B1B1B | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C1928
#1C1928
oklch(22.4% 0.029 293.1)
- #1C1D0D
#1C1D0D
oklch(22.5% 0.028 111.6)
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 #1C1928, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.025
- Dark #1B2431 ΔE 0.038
- Jet #212529 ΔE 0.044
- Oxford Blue #1B263B ΔE 0.050
- Rich Navy #001219 ΔE 0.065
- Very Dark Purple #2A0134 ΔE 0.075
- Midnight Purple #280137 ΔE 0.076
- Eggplant #380835 ΔE 0.077
Use #1C1928 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.