#374674
Closest named color: Light Navy (#155084). oklch(40.4% 0.08 269), rgb(55, 70, 116).
Aa
White text reads best on this color (9.16:1).
About this color
#374674 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.080 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 9.16:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.29:1 |
| White text | 9.16:1 |
Values
| HEX | #374674 |
| RGB | rgb(55, 70, 116) |
| HSL | hsl(225, 36%, 34%) |
| OKLCH | oklch(40.4% 0.08 269) |
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 #374674 | 9.16:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #374674 | 2.29:1 | Fails | Lc 13.0 | Not readable |
| #374674 text on white | 9.16:1 | AAA | Lc 91.0 | Preferred for body text |
| #374674 text on black | 2.29:1 | Fails | Lc -11.3 | 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
#8D9FD0
oklch(70.7% 0.075 268.8)
-
Step 500
500
#7287C4
oklch(63.2% 0.095 269.1)
-
Step 600
600
#5A70B0
oklch(55.6% 0.103 268.5)
-
Step 700
700
#4A5D98
oklch(49.1% 0.098 269.1)
-
Step 800
800 (this color)
#374674
oklch(40.4% 0.08 269)
-
Step 900
900
#344063
oklch(37.8% 0.062 268.9)
-
Step 950
950
#1E263A
oklch(27.1% 0.039 267.1)
#374674 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) | #344B76 | 0.015 |
| Deuteranopia (no green cones) | #2E4573 | 0.013 |
| Tritanopia (no blue cones) | #1D5057 | 0.072 |
| Achromatopsia (no color) | #484848 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374674
#374674
oklch(40.4% 0.08 269)
- #5A4605
#5A4605
oklch(40.4% 0.08 89.3)
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 #374674, 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
- Dark Grey Blue #29465B ΔE 0.048
- Cobalt #1E488F ΔE 0.050
- Dusk Blue #26538D ΔE 0.051
- Deep Sea Blue #015482 ΔE 0.053
- Dark Slate Blue #483D8B ΔE 0.055
- Dusk #4E5481 ΔE 0.058
Use #374674 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.