#134B78
Closest named color: Light Navy (#155084). oklch(40.2% 0.094 247.7), rgb(19, 75, 120).
Aa
White text reads best on this color (9.10:1).
About this color
#134B78 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.094 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.023 away. White text reads best on it, at 9.10:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.30:1 |
| White text | 9.10:1 |
Values
| HEX | #134B78 |
| RGB | rgb(19, 75, 120) |
| HSL | hsl(207, 73%, 27%) |
| OKLCH | oklch(40.2% 0.094 247.7) |
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 #134B78 | 9.10:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #134B78 | 2.30:1 | Fails | Lc 13.4 | Not readable |
| #134B78 text on white | 9.10:1 | AAA | Lc 90.6 | Preferred for body text |
| #134B78 text on black | 2.30:1 | Fails | Lc -11.7 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C5DCF2
oklch(88.4% 0.039 247.1)
-
Step 300
300
#9DC5ED
oklch(80.9% 0.071 248.7)
-
Step 400
400
#63A6E4
oklch(70.6% 0.114 248)
-
Step 500
500
#308FDC
oklch(63.2% 0.145 247.5)
-
Step 600
600
#0077C5
oklch(55.6% 0.149 247.9)
-
Step 700
700
#0064A6
oklch(49.1% 0.131 247.6)
-
Step 800
800
#005289
oklch(42.7% 0.113 247.3)
-
Step 900
900 (this color)
#134B78
oklch(40.2% 0.094 247.7)
-
Step 950
950
#092842
oklch(26.9% 0.06 247.8)
#134B78 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) | #364D7A | 0.035 |
| Deuteranopia (no green cones) | #274477 | 0.024 |
| Tritanopia (no blue cones) | #00565B | 0.069 |
| Achromatopsia (no color) | #484848 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #134B78
#134B78
oklch(40.2% 0.094 247.7)
- #673D00
#673D00
oklch(40.1% 0.089 67.3)
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 #134B78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.023
- Twilight Blue #0A437A ΔE 0.027
- Deep Sea Blue #015482 ΔE 0.029
- Cobalt #1E488F ΔE 0.042
- Dusk Blue #26538D ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.049
- Light Navy Blue #2E5A88 ΔE 0.057
- Charcoal #264653 ΔE 0.062
Use #134B78 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.