#3A5875
Closest named color: YInMn Blue (#415A77). oklch(45% 0.06 248.5), rgb(58, 88, 117).
Aa
White text reads best on this color (7.41:1).
About this color
#3A5875 is a dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.060 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.012 away. White text reads best on it, at 7.41:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.83:1 |
| White text | 7.41:1 |
Values
| HEX | #3A5875 |
| RGB | rgb(58, 88, 117) |
| HSL | hsl(209, 34%, 34%) |
| OKLCH | oklch(45% 0.06 248.5) |
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 #3A5875 | 7.41:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #3A5875 | 2.83:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #3A5875 text on white | 7.41:1 | AAA | Lc 85.7 | Fine for body text |
| #3A5875 text on black | 2.83:1 | Fails | Lc -16.4 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#D0DBE6
oklch(88.6% 0.019 248)
-
Step 300
300
#B0C3D7
oklch(80.9% 0.035 249.6)
-
Step 400
400
#86A4C2
oklch(70.7% 0.055 248.6)
-
Step 500
500
#678DB3
oklch(63% 0.072 249)
-
Step 600
600
#4E779F
oklch(55.6% 0.078 248.8)
-
Step 700
700
#3F6488
oklch(49.1% 0.072 248.8)
-
Step 800
800 (this color)
#3A5875
oklch(45% 0.06 248.5)
-
Step 900
900
#2E4459
oklch(37.8% 0.046 248)
-
Step 950
950
#1B2834
oklch(27.1% 0.029 246.9)
#3A5875 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) | #4C5976 | 0.024 |
| Deuteranopia (no green cones) | #455374 | 0.019 |
| Tritanopia (no blue cones) | #1F5F62 | 0.051 |
| Achromatopsia (no color) | #555555 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A5875
#3A5875
oklch(45% 0.06 248.5)
- #6B4F2F
#6B4F2F
oklch(45% 0.06 69)
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 #3A5875, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.012
- Light Navy Blue #2E5A88 ΔE 0.032
- Dusty Grape #545775 ΔE 0.035
- Dusk #4E5481 ΔE 0.037
- Denim #3B638C ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.048
- Petrol #005F6A ΔE 0.049
Use #3A5875 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.