#375479
Closest named color: YInMn Blue (#415A77). oklch(44% 0.071 255), rgb(55, 84, 121).
Aa
White text reads best on this color (7.75:1).
About this color
#375479 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.071 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.024 away. White text reads best on it, at 7.75:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #375479 |
| RGB | rgb(55, 84, 121) |
| HSL | hsl(214, 37%, 35%) |
| OKLCH | oklch(44% 0.071 255) |
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 #375479 | 7.75:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #375479 | 2.70:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #375479 text on white | 7.75:1 | AAA | Lc 86.8 | Fine for body text |
| #375479 text on black | 2.70:1 | Fails | Lc -15.3 | Dividers and decoration only |
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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200
#CFDAE8
oklch(88.4% 0.023 254.4)
-
Step 300
300
#AFC2DB
oklch(80.8% 0.041 255.3)
-
Step 400
400
#85A3CA
oklch(70.7% 0.066 255.2)
-
Step 500
500
#668CBC
oklch(63.1% 0.084 254.7)
-
Step 600
600
#4D75A8
oklch(55.5% 0.092 255)
-
Step 700
700
#3E6290
oklch(49% 0.085 255.1)
-
Step 800
800 (this color)
#375479
oklch(44% 0.071 255)
-
Step 900
900
#2D435E
oklch(37.7% 0.054 254.1)
-
Step 950
950
#1B2737
oklch(26.9% 0.034 255.8)
#375479 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) | #45567B | 0.020 |
| Deuteranopia (no green cones) | #3D5078 | 0.013 |
| Tritanopia (no blue cones) | #145C61 | 0.062 |
| Achromatopsia (no color) | #525252 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #375479
#375479
oklch(44% 0.071 255)
- #694D21
#694D21
oklch(44.1% 0.071 76.3)
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 #375479, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.027
- Dusk #4E5481 ΔE 0.035
- Dusk Blue #26538D ΔE 0.037
- Deep Sea Blue #015482 ΔE 0.039
- Light Navy #155084 ΔE 0.039
- Dusty Grape #545775 ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.043
Use #375479 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.