#191842
Closest named color: Dark Indigo (#1F0954). oklch(23.8% 0.077 279.8), rgb(25, 24, 66).
Aa
White text reads best on this color (16.79:1).
About this color
#191842 is a very dark, moderately saturated blue. In OKLCH its lightness is 24%, its chroma 0.077 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.046 away. White text reads best on it, at 16.79:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.25:1 |
| White text | 16.79:1 |
Values
| HEX | #191842 |
| RGB | rgb(25, 24, 66) |
| HSL | hsl(241, 47%, 18%) |
| OKLCH | oklch(23.8% 0.077 279.8) |
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 #191842 | 16.79:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #191842 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #191842 text on white | 16.79:1 | AAA | Lc 103.5 | Preferred for body text |
| #191842 text on black | 1.25:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FC
oklch(93.5% 0.027 281.3)
-
Step 200
200
#D2D6FB
oklch(88.5% 0.051 280.4)
-
Step 300
300
#B4BBFB
oklch(80.9% 0.091 279.3)
-
Step 400
400
#8F94F9
oklch(70.6% 0.146 279.8)
-
Step 500
500
#7776F6
oklch(63.1% 0.186 280)
-
Step 600
600
#625AE5
oklch(55.5% 0.204 280)
-
Step 700
700
#5249C7
oklch(49.1% 0.189 280.1)
-
Step 800
800
#423DA1
oklch(42.7% 0.157 279.7)
-
Step 900
900
#373580
oklch(37.6% 0.123 279.9)
-
Step 950
950 (this color)
#191842
oklch(23.8% 0.077 279.8)
#191842 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) | #001F43 | 0.034 |
| Deuteranopia (no green cones) | #001C41 | 0.033 |
| Tritanopia (no blue cones) | #06222A | 0.067 |
| Achromatopsia (no color) | #1D1D1D | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #191842
#191842
oklch(23.8% 0.077 279.8)
- #241F00
#241F00
oklch(23.8% 0.05 100.7)
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 #191842, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.046
- Navy Blue #001146 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.050
- Rich Black #0D1B2A ΔE 0.053
- Dark #1B2431 ΔE 0.056
- Midnight Purple #280137 ΔE 0.064
- Night Blue #040348 ΔE 0.067
- Very Dark Purple #2A0134 ΔE 0.068
Use #191842 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.