#193F60
Closest named color: Prussian Blue (#1D3557). oklch(35.7% 0.072 247.6), rgb(25, 63, 96).
Aa
White text reads best on this color (10.93:1).
About this color
#193F60 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.072 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.032 away. White text reads best on it, at 10.93:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.92:1 |
| White text | 10.93:1 |
Values
| HEX | #193F60 |
| RGB | rgb(25, 63, 96) |
| HSL | hsl(208, 59%, 24%) |
| OKLCH | oklch(35.7% 0.072 247.6) |
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 #193F60 | 10.93:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #193F60 | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #193F60 text on white | 10.93:1 | AAA | Lc 95.1 | Preferred for body text |
| #193F60 text on black | 1.92:1 | Fails | Lc -7.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADBEC
oklch(88.4% 0.03 248.2)
-
Step 300
300
#A6C4E2
oklch(80.8% 0.054 248.5)
-
Step 400
400
#74A6D4
oklch(70.8% 0.086 247.1)
-
Step 500
500
#4E8FC9
oklch(63.2% 0.11 247.4)
-
Step 600
600
#2F78B5
oklch(55.6% 0.119 247.4)
-
Step 700
700
#21649C
oklch(49% 0.112 248)
-
Step 800
800
#1E527F
oklch(42.7% 0.093 248.2)
-
Step 900
900 (this color)
#193F60
oklch(35.7% 0.072 247.6)
-
Step 950
950
#13283C
oklch(27% 0.046 248.8)
#193F60 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) | #304061 | 0.027 |
| Deuteranopia (no green cones) | #263A5F | 0.019 |
| Tritanopia (no blue cones) | #00474B | 0.054 |
| Achromatopsia (no color) | #3D3D3D | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #193F60
#193F60
oklch(35.7% 0.072 247.6)
- #553409
#553409
oklch(35.7% 0.072 67.5)
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 #193F60, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.032
- Dark Grey Blue #29465B ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.033
- Marine Blue #01386A ΔE 0.035
- Charcoal #264653 ΔE 0.039
- Midnight Green #073B4C ΔE 0.040
- Twilight Blue #0A437A ΔE 0.044
- Marine #042E60 ΔE 0.059
Use #193F60 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.