#193887
Closest named color: Twilight Blue (#0A437A). oklch(37% 0.138 264.4), rgb(25, 56, 135).
Aa
White text reads best on this color (10.73:1).
About this color
#193887 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.138 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.040 away. White text reads best on it, at 10.73:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 1.95:1 |
| White text | 10.73:1 |
Values
| HEX | #193887 |
| RGB | rgb(25, 56, 135) |
| HSL | hsl(223, 69%, 31%) |
| OKLCH | oklch(37% 0.138 264.4) |
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 #193887 | 10.73:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #193887 | 1.95:1 | Fails | Lc 9.6 | Not readable |
| #193887 text on white | 10.73:1 | AAA | Lc 94.4 | Preferred for body text |
| #193887 text on black | 1.95:1 | Fails | Lc -8.2 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E0EAFF
oklch(93.6% 0.03 265.3)
-
Step 200
200
#C7D9FF
oklch(88.4% 0.056 265.2)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#709DFF
oklch(70.7% 0.152 264.2)
-
Step 500
500
#4B80FF
oklch(63.1% 0.197 264.4)
-
Step 600
600
#2B62F6
oklch(55.5% 0.229 264.4)
-
Step 700
700
#1F50D7
oklch(49.1% 0.213 264.3)
-
Step 800
800
#1B43AD
oklch(42.7% 0.175 264.3)
-
Step 900
900 (this color)
#193887
oklch(37% 0.138 264.4)
-
Step 950
950
#102350
oklch(27% 0.086 264.2)
#193887 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) | #00438A | 0.030 |
| Deuteranopia (no green cones) | #003985 | 0.015 |
| Tritanopia (no blue cones) | #004C59 | 0.109 |
| Achromatopsia (no color) | #3E3E3E | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #193887
#193887
oklch(37% 0.138 264.4)
- #523C00
#523C00
oklch(37.1% 0.076 85.3)
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 #193887, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.040
- Cobalt #1E488F ΔE 0.046
- Marine Blue #01386A ΔE 0.053
- Sapphire #2138AB ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.067
- Light Navy #155084 ΔE 0.069
- Blueberry #464196 ΔE 0.071
- Royal #0C1793 ΔE 0.073
Use #193887 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.