#192F81
Closest named color: Marine Blue (#01386A). oklch(34.6% 0.141 266.9), rgb(25, 47, 129).
Aa
White text reads best on this color (11.89:1).
About this color
#192F81 is a dark, vivid blue. In OKLCH its lightness is 35%, its chroma 0.141 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.050 away. White text reads best on it, at 11.89:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.76:1 |
| White text | 11.89:1 |
Values
| HEX | #192F81 |
| RGB | rgb(25, 47, 129) |
| HSL | hsl(227, 68%, 30%) |
| OKLCH | oklch(34.6% 0.141 266.9) |
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 #192F81 | 11.89:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #192F81 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #192F81 text on white | 11.89:1 | AAA | Lc 96.7 | Preferred for body text |
| #192F81 text on black | 1.76:1 | 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 900.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#769BFF
oklch(70.7% 0.152 267.2)
-
Step 500
500
#547EFF
oklch(63.1% 0.197 267)
-
Step 600
600
#375FFA
oklch(55.7% 0.235 266.9)
-
Step 700
700
#2B4CDA
oklch(49.1% 0.219 267.1)
-
Step 800
800
#2340B0
oklch(42.7% 0.181 266.8)
-
Step 900
900 (this color)
#192F81
oklch(34.6% 0.141 266.9)
-
Step 950
950
#132251
oklch(27% 0.088 267)
#192F81 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) | #003C84 | 0.034 |
| Deuteranopia (no green cones) | #00327F | 0.017 |
| Tritanopia (no blue cones) | #004453 | 0.110 |
| Achromatopsia (no color) | #373737 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #192F81
#192F81
oklch(34.6% 0.141 266.9)
- #493600
#493600
oklch(34.5% 0.071 86.7)
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 #192F81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.050
- Twilight Blue #0A437A ΔE 0.056
- Royal #0C1793 ΔE 0.057
- Midnight Blue #191970 ΔE 0.060
- Marine #042E60 ΔE 0.061
- Cobalt #1E488F ΔE 0.071
- Sapphire #2138AB ΔE 0.075
- Prussian Blue #1D3557 ΔE 0.077
Use #192F81 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.