#374971
Closest named color: Light Navy (#155084). oklch(40.9% 0.071 265), rgb(55, 73, 113).
Aa
White text reads best on this color (8.92:1).
About this color
#374971 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.042 away. White text reads best on it, at 8.92:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.35:1 |
| White text | 8.92:1 |
Values
| HEX | #374971 |
| RGB | rgb(55, 73, 113) |
| HSL | hsl(221, 35%, 33%) |
| OKLCH | oklch(40.9% 0.071 265) |
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 #374971 | 8.92:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #374971 | 2.35:1 | Fails | Lc 13.6 | Not readable |
| #374971 text on white | 8.92:1 | AAA | Lc 90.4 | Preferred for body text |
| #374971 text on black | 2.35:1 | Fails | Lc -11.9 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF2
oklch(93.6% 0.012 264.5)
-
Step 200
200
#D2D9E9
oklch(88.5% 0.023 266.9)
-
Step 300
300
#B4C1DC
oklch(81% 0.041 265)
-
Step 400
400
#8CA0CB
oklch(70.6% 0.067 265.3)
-
Step 500
500
#7089BE
oklch(63.2% 0.085 264.7)
-
Step 600
600
#5872AA
oklch(55.6% 0.093 264.6)
-
Step 700
700
#485F92
oklch(49% 0.087 264.9)
-
Step 800
800 (this color)
#374971
oklch(40.9% 0.071 265)
-
Step 900
900
#33415F
oklch(37.7% 0.055 264.7)
-
Step 950
950
#1E2638
oklch(27% 0.036 265.6)
#374971 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) | #3A4C73 | 0.011 |
| Deuteranopia (no green cones) | #344770 | 0.008 |
| Tritanopia (no blue cones) | #1E5257 | 0.066 |
| Achromatopsia (no color) | #4A4A4A | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374971
#374971
oklch(40.9% 0.071 265)
- #5C4715
#5C4715
oklch(41% 0.072 85.3)
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 #374971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.049
- Twilight Blue #0A437A ΔE 0.050
- Dusk Blue #26538D ΔE 0.051
- Dusk #4E5481 ΔE 0.054
- YInMn Blue #415A77 ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.056
Use #374971 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.