#19193D
Closest named color: Rich Black (#0D1B2A). oklch(23.6% 0.067 279.9), rgb(25, 25, 61).
Aa
White text reads best on this color (16.83:1).
About this color
#19193D is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.067 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.044 away. White text reads best on it, at 16.83:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.24:1 |
| White text | 16.83:1 |
Values
| HEX | #19193D |
| RGB | rgb(25, 25, 61) |
| HSL | hsl(240, 42%, 17%) |
| OKLCH | oklch(23.6% 0.067 279.9) |
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 #19193D | 16.83:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #19193D | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #19193D text on white | 16.83:1 | AAA | Lc 103.6 | Preferred for body text |
| #19193D text on black | 1.24:1 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D3D7F7
oklch(88.6% 0.044 279.8)
-
Step 300
300
#B6BCF4
oklch(81% 0.079 279.7)
-
Step 400
400
#9197EE
oklch(70.7% 0.127 279.6)
-
Step 500
500
#787AE9
oklch(63.1% 0.163 279.8)
-
Step 600
600
#6360D7
oklch(55.6% 0.177 280.1)
-
Step 700
700
#524FBA
oklch(49.1% 0.164 279.7)
-
Step 800
800
#434197
oklch(42.7% 0.137 279.9)
-
Step 900
900
#383878
oklch(37.7% 0.106 280)
-
Step 950
950 (this color)
#19193D
oklch(23.6% 0.067 279.9)
#19193D 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) | #071F3E | 0.028 |
| Deuteranopia (no green cones) | #041C3C | 0.029 |
| Tritanopia (no blue cones) | #0A2128 | 0.058 |
| Achromatopsia (no color) | #1D1D1D | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19193D
#19193D
oklch(23.6% 0.067 279.9)
- #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 #19193D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.044
- Oxford Blue #1B263B ΔE 0.044
- Dark #1B2431 ΔE 0.048
- Navy Blue #001146 ΔE 0.050
- Dark Indigo #1F0954 ΔE 0.055
- Jet #212529 ΔE 0.065
- Midnight Purple #280137 ΔE 0.065
- Very Dark Purple #2A0134 ΔE 0.068
Use #19193D 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.