#191C24
Closest named color: Rich Black (#0D1B2A). oklch(22.7% 0.016 268.9), rgb(25, 28, 36).
Aa
White text reads best on this color (17.03:1).
About this color
#191C24 is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.023 away. White text reads best on it, at 17.03:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 17.03:1 |
Values
| HEX | #191C24 |
| RGB | rgb(25, 28, 36) |
| HSL | hsl(224, 18%, 12%) |
| OKLCH | oklch(22.7% 0.016 268.9) |
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 #191C24 | 17.03:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #191C24 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #191C24 text on white | 17.03:1 | AAA | Lc 103.9 | Preferred for body text |
| #191C24 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E0
oklch(88.5% 0.01 267.4)
-
Step 300
300
#BBC0CD
oklch(80.8% 0.019 269)
-
Step 400
400
#99A0B4
oklch(70.7% 0.03 270.3)
-
Step 500
500
#8089A2
oklch(63.1% 0.039 269.7)
-
Step 600
600
#69738D
oklch(55.7% 0.042 268.5)
-
Step 700
700
#576078
oklch(49.1% 0.04 268.8)
-
Step 800
800
#474F61
oklch(42.8% 0.032 266.2)
-
Step 900
900
#3C4150
oklch(37.7% 0.027 270.6)
-
Step 950
950 (this color)
#191C24
oklch(22.7% 0.016 268.9)
#191C24 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) | #1A1D24 | 0.004 |
| Deuteranopia (no green cones) | #191C24 | 0.000 |
| Tritanopia (no blue cones) | #161E1F | 0.015 |
| Achromatopsia (no color) | #1C1C1C | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191C24
#191C24
oklch(22.7% 0.016 268.9)
- #1F1C14
#1F1C14
oklch(22.7% 0.015 89.9)
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 #191C24, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.023
- Dark #1B2431 ΔE 0.033
- Jet #212529 ΔE 0.036
- Oxford Blue #1B263B ΔE 0.050
- Rich Navy #001219 ΔE 0.062
- Dark Brown #341C02 ΔE 0.074
- Almost Black #070D0D ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.081
Use #191C24 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.