#19193E
Closest named color: Oxford Blue (#1B263B). oklch(23.7% 0.069 279.8), rgb(25, 25, 62).
Aa
White text reads best on this color (16.80:1).
About this color
#19193E is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.069 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.045 away. White text reads best on it, at 16.80:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.24:1 |
| White text | 16.80:1 |
Values
| HEX | #19193E |
| RGB | rgb(25, 25, 62) |
| HSL | hsl(240, 43%, 17%) |
| OKLCH | oklch(23.7% 0.069 279.8) |
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 #19193E | 16.80:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #19193E | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #19193E text on white | 16.80:1 | AAA | Lc 103.6 | Preferred for body text |
| #19193E 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
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300
#B5BBF5
oklch(80.8% 0.082 279.8)
-
Step 400
400
#9196F0
oklch(70.6% 0.131 280.1)
-
Step 500
500
#787AEB
oklch(63.2% 0.166 279.8)
-
Step 600
600
#625FD9
oklch(55.5% 0.182 279.8)
-
Step 700
700
#524EBD
oklch(49.2% 0.169 279.8)
-
Step 800
800
#434199
oklch(42.8% 0.14 279.7)
-
Step 900
900
#383879
oklch(37.7% 0.108 279.9)
-
Step 950
950 (this color)
#19193E
oklch(23.7% 0.069 279.8)
#19193E 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) | #061F3F | 0.028 |
| Deuteranopia (no green cones) | #031C3D | 0.030 |
| Tritanopia (no blue cones) | #092128 | 0.060 |
| Achromatopsia (no color) | #1D1D1D | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19193E
#19193E
oklch(23.7% 0.069 279.8)
- #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 #19193E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.045
- Rich Black #0D1B2A ΔE 0.046
- Dark #1B2431 ΔE 0.049
- Navy Blue #001146 ΔE 0.049
- Dark Indigo #1F0954 ΔE 0.054
- Midnight Purple #280137 ΔE 0.065
- Jet #212529 ΔE 0.066
- Very Dark Purple #2A0134 ΔE 0.068
Use #19193E 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.