#13456F
Closest named color: Twilight Blue (#0A437A). oklch(38% 0.089 248.3), rgb(19, 69, 111).
Aa
White text reads best on this color (9.95:1).
About this color
#13456F is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.089 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.021 away. White text reads best on it, at 9.95:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.10:1 |
| White text | 9.95:1 |
Values
| HEX | #13456F |
| RGB | rgb(19, 69, 111) |
| HSL | hsl(207, 71%, 25%) |
| OKLCH | oklch(38% 0.089 248.3) |
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 #13456F | 9.95:1 | AAA | Lc -96.9 | Preferred for body text |
| Black text on #13456F | 2.10:1 | Fails | Lc 11.2 | Not readable |
| #13456F text on white | 9.95:1 | AAA | Lc 92.8 | Preferred for body text |
| #13456F text on black | 2.10:1 | Fails | Lc -9.7 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C7DCF1
oklch(88.5% 0.037 248.2)
-
Step 300
300
#9FC5EA
oklch(80.9% 0.066 248)
-
Step 400
400
#69A6E0
oklch(70.7% 0.106 248.4)
-
Step 500
500
#3B8ED7
oklch(63% 0.136 248.4)
-
Step 600
600
#0977C5
oklch(55.6% 0.148 248.4)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800
#04528A
oklch(42.8% 0.114 248.2)
-
Step 900
900 (this color)
#13456F
oklch(38% 0.089 248.3)
-
Step 950
950
#0D2840
oklch(27% 0.056 248.3)
#13456F 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) | #314771 | 0.031 |
| Deuteranopia (no green cones) | #243F6E | 0.021 |
| Tritanopia (no blue cones) | #004F54 | 0.065 |
| Achromatopsia (no color) | #434343 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13456F
#13456F
oklch(38% 0.089 248.3)
- #5F3900
#5F3900
oklch(38.2% 0.083 68.7)
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 #13456F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.021
- Dark Grey Blue #29465B ΔE 0.039
- Marine Blue #01386A ΔE 0.044
- Light Navy #155084 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.050
- Charcoal #264653 ΔE 0.051
- Cobalt #1E488F ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.058
Use #13456F 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.