#192F55
Closest named color: Prussian Blue (#1D3557). oklch(30.9% 0.074 260.6), rgb(25, 47, 85).
Aa
White text reads best on this color (13.29:1).
About this color
#192F55 is a dark, moderately saturated blue. In OKLCH its lightness is 31%, its chroma 0.074 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.020 away. White text reads best on it, at 13.29:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.57:1 |
| White text | 13.29:1 |
Values
| HEX | #192F55 |
| RGB | rgb(25, 47, 85) |
| HSL | hsl(218, 55%, 22%) |
| OKLCH | oklch(30.9% 0.074 260.6) |
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 #192F55 | 13.29:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #192F55 | 1.57:1 | Fails | Lc 0.0 | Not readable |
| #192F55 text on white | 13.29:1 | AAA | Lc 99.5 | Preferred for body text |
| #192F55 text on black | 1.57:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E0EBFB
oklch(93.7% 0.025 257.6)
-
Step 200
200
#C7DAFA
oklch(88.4% 0.049 260.9)
-
Step 300
300
#A0C2FA
oklch(80.9% 0.088 260.2)
-
Step 400
400
#6CA0F7
oklch(70.7% 0.14 260.2)
-
Step 500
500
#4585F4
oklch(63.1% 0.179 260.6)
-
Step 600
600
#256BE3
oklch(55.6% 0.196 260.6)
-
Step 700
700
#1858C5
oklch(49% 0.182 260.7)
-
Step 800
800
#17499F
oklch(42.7% 0.15 260.6)
-
Step 900
900
#193E7F
oklch(37.7% 0.118 260.7)
-
Step 950
950 (this color)
#192F55
oklch(30.9% 0.074 260.6)
#192F55 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) | #1E3256 | 0.012 |
| Deuteranopia (no green cones) | #152D54 | 0.008 |
| Tritanopia (no blue cones) | #00383D | 0.063 |
| Achromatopsia (no color) | #2F2F2F | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #192F55
#192F55
oklch(30.9% 0.074 260.6)
- #402C00
#402C00
oklch(30.9% 0.064 81.6)
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 #192F55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.020
- Marine #042E60 ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.040
- Marine Blue #01386A ΔE 0.043
- Gunmetal #293241 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.047
- Midnight Green #073B4C ΔE 0.047
- Oxford Blue #1B263B ΔE 0.051
Use #192F55 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.