#374675
Closest named color: Light Navy (#155084). oklch(40.5% 0.082 269.2), rgb(55, 70, 117).
Aa
White text reads best on this color (9.14:1).
About this color
#374675 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.082 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.043 away. White text reads best on it, at 9.14:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.29:1 |
| White text | 9.14:1 |
Values
| HEX | #374675 |
| RGB | rgb(55, 70, 117) |
| HSL | hsl(225, 36%, 34%) |
| OKLCH | oklch(40.5% 0.082 269.2) |
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 #374675 | 9.14:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #374675 | 2.29:1 | Fails | Lc 13.0 | Not readable |
| #374675 text on white | 9.14:1 | AAA | Lc 91.0 | Preferred for body text |
| #374675 text on black | 2.29:1 | Fails | Lc -11.4 | 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 800.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D2D9EB
oklch(88.5% 0.026 268.8)
-
Step 300
300
#B4C0E0
oklch(80.9% 0.047 269.1)
-
Step 400
400
#8D9FD1
oklch(70.7% 0.076 269.1)
-
Step 500
500
#7187C5
oklch(63.2% 0.097 268.6)
-
Step 600
600
#5A6FB1
oklch(55.5% 0.106 269.4)
-
Step 700
700
#4A5D99
oklch(49.1% 0.099 269.2)
-
Step 800
800 (this color)
#374675
oklch(40.5% 0.082 269.2)
-
Step 900
900
#344064
oklch(37.8% 0.064 269.2)
-
Step 950
950
#1E253A
oklch(26.8% 0.041 269.5)
#374675 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) | #344B77 | 0.015 |
| Deuteranopia (no green cones) | #2D4574 | 0.014 |
| Tritanopia (no blue cones) | #1C5058 | 0.072 |
| Achromatopsia (no color) | #484848 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374675
#374675
oklch(40.5% 0.082 269.2)
- #5B4602
#5B4602
oklch(40.5% 0.082 88.8)
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 #374675, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.045
- Cobalt #1E488F ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.050
- Dusk Blue #26538D ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.053
- Dusk #4E5481 ΔE 0.058
Use #374675 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.