#1D1522
Closest named color: Rich Black (#0D1B2A). oklch(21.2% 0.028 312), rgb(29, 21, 34).
Aa
White text reads best on this color (17.75:1).
About this color
#1D1522 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.033 away. White text reads best on it, at 17.75:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.75:1 |
Values
| HEX | #1D1522 |
| RGB | rgb(29, 21, 34) |
| HSL | hsl(277, 24%, 11%) |
| OKLCH | oklch(21.2% 0.028 312) |
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 #1D1522 | 17.75:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #1D1522 | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #1D1522 text on white | 17.75:1 | AAA | Lc 104.5 | Preferred for body text |
| #1D1522 text on black | 1.18:1 | 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
#F6F5F8
oklch(97.2% 0.004 301.4)
-
Step 100
100
#ECE8EE
oklch(93.6% 0.009 314.8)
-
Step 200
200
#DDD6E2
oklch(88.5% 0.018 311.6)
-
Step 300
300
#C8BBD0
oklch(80.9% 0.032 312.8)
-
Step 400
400
#AC98B9
oklch(70.8% 0.052 312.1)
-
Step 500
500
#977EA7
oklch(63.1% 0.067 312)
-
Step 600
600
#826792
oklch(55.6% 0.072 312.6)
-
Step 700
700
#6E557D
oklch(49.1% 0.069 312.4)
-
Step 800
800
#594665
oklch(42.6% 0.055 311.9)
-
Step 900
900
#493B53
oklch(37.7% 0.044 310.8)
-
Step 950
950 (this color)
#1D1522
oklch(21.2% 0.028 312)
#1D1522 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) | #131823 | 0.021 |
| Deuteranopia (no green cones) | #151822 | 0.018 |
| Tritanopia (no blue cones) | #1D171A | 0.020 |
| Achromatopsia (no color) | #181818 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1D1522
#1D1522
oklch(21.2% 0.028 312)
- #141B0E
#141B0E
oklch(21.1% 0.027 131.4)
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 #1D1522, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.033
- Dark #1B2431 ΔE 0.053
- Jet #212529 ΔE 0.056
- Rich Navy #001219 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.066
- Almost Black #070D0D ΔE 0.068
- Very Dark Purple #2A0134 ΔE 0.071
- Midnight Purple #280137 ΔE 0.073
Use #1D1522 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.