#19284B
Closest named color: Oxford Blue (#1B263B). oklch(28.4% 0.068 264.9), rgb(25, 40, 75).
Aa
White text reads best on this color (14.51:1).
About this color
#19284B is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.068 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.029 away. White text reads best on it, at 14.51:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.44:1 |
| White text | 14.51:1 |
Values
| HEX | #19284B |
| RGB | rgb(25, 40, 75) |
| HSL | hsl(222, 50%, 20%) |
| OKLCH | oklch(28.4% 0.068 264.9) |
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 #19284B | 14.51:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #19284B | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #19284B text on white | 14.51:1 | AAA | Lc 101.2 | Preferred for body text |
| #19284B text on black | 1.44:1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CBD9F7
oklch(88.4% 0.044 265.6)
-
Step 300
300
#A7C0F5
oklch(80.8% 0.08 265)
-
Step 400
400
#799EF0
oklch(70.7% 0.128 264.9)
-
Step 500
500
#5883EB
oklch(63% 0.163 265.1)
-
Step 600
600
#3E6ADA
oklch(55.5% 0.179 265)
-
Step 700
700
#3158BD
oklch(49.1% 0.165 264.9)
-
Step 800
800
#294899
oklch(42.6% 0.138 265.2)
-
Step 900
900
#253E7A
oklch(37.8% 0.107 264.8)
-
Step 950
950 (this color)
#19284B
oklch(28.4% 0.068 264.9)
#19284B 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) | #182C4C | 0.013 |
| Deuteranopia (no green cones) | #11274A | 0.011 |
| Tritanopia (no blue cones) | #003035 | 0.060 |
| Achromatopsia (no color) | #292929 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #19284B
#19284B
oklch(28.4% 0.068 264.9)
- #372700
#372700
oklch(28.4% 0.058 84.9)
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 #19284B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.039
- Marine #042E60 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.045
- Dark #1B2431 ΔE 0.048
- Gunmetal #293241 ΔE 0.049
- Jet #212529 ΔE 0.062
- Midnight Green #073B4C ΔE 0.063
Use #19284B 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.