#374979
Closest named color: Light Navy (#155084). oklch(41.4% 0.084 267.2), rgb(55, 73, 121).
Aa
White text reads best on this color (8.78:1).
About this color
#374979 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.084 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.036 away. White text reads best on it, at 8.78:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.39:1 |
| White text | 8.78:1 |
Values
| HEX | #374979 |
| RGB | rgb(55, 73, 121) |
| HSL | hsl(224, 37%, 35%) |
| OKLCH | oklch(41.4% 0.084 267.2) |
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 #374979 | 8.78:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #374979 | 2.39:1 | Fails | Lc 14.0 | Not readable |
| #374979 text on white | 8.78:1 | AAA | Lc 89.9 | Fine for body text |
| #374979 text on black | 2.39:1 | Fails | Lc -12.3 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B2C0E1
oklch(80.8% 0.049 267.1)
-
Step 400
400
#8BA0D2
oklch(70.8% 0.077 266.8)
-
Step 500
500
#6E87C6
oklch(63% 0.1 267)
-
Step 600
600
#5770B3
oklch(55.6% 0.109 267.3)
-
Step 700
700
#475E9A
oklch(49.2% 0.1 266.9)
-
Step 800
800 (this color)
#374979
oklch(41.4% 0.084 267.2)
-
Step 900
900
#324064
oklch(37.7% 0.065 267.1)
-
Step 950
950
#1D263B
oklch(27.1% 0.041 266)
#374979 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) | #364E7B | 0.015 |
| Deuteranopia (no green cones) | #2E4878 | 0.012 |
| Tritanopia (no blue cones) | #17535B | 0.074 |
| Achromatopsia (no color) | #4B4B4B | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374979
#374979
oklch(41.4% 0.084 267.2)
- #5F4802
#5F4802
oklch(41.5% 0.084 87.3)
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 #374979, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.036
- Dusk Blue #26538D ΔE 0.041
- Cobalt #1E488F ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.046
- Twilight Blue #0A437A ΔE 0.048
- Dusk #4E5481 ΔE 0.050
- Twilight #4E518B ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.051
Use #374979 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.