#3A516C
Closest named color: YInMn Blue (#415A77). oklch(42.8% 0.053 253), rgb(58, 81, 108).
Aa
White text reads best on this color (8.16:1).
About this color
#3A516C is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.053 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.032 away. White text reads best on it, at 8.16:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.57:1 |
| White text | 8.16:1 |
Values
| HEX | #3A516C |
| RGB | rgb(58, 81, 108) |
| HSL | hsl(212, 30%, 33%) |
| OKLCH | oklch(42.8% 0.053 253) |
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 #3A516C | 8.16:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #3A516C | 2.57:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #3A516C text on white | 8.16:1 | AAA | Lc 88.2 | Fine for body text |
| #3A516C text on black | 2.57:1 | Fails | Lc -14.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B3C2D5
oklch(80.9% 0.032 254.3)
-
Step 400
400
#8BA3C0
oklch(70.7% 0.05 253.3)
-
Step 500
500
#6E8CB0
oklch(63.1% 0.064 253.3)
-
Step 600
600
#56769B
oklch(55.6% 0.069 252.6)
-
Step 700
700
#466385
oklch(49.1% 0.065 253)
-
Step 800
800 (this color)
#3A516C
oklch(42.8% 0.053 253)
-
Step 900
900
#324357
oklch(37.7% 0.041 252.9)
-
Step 950
950
#1D2733
oklch(26.9% 0.027 253.3)
#3A516C 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) | #47526D | 0.019 |
| Deuteranopia (no green cones) | #414D6B | 0.014 |
| Tritanopia (no blue cones) | #27575A | 0.046 |
| Achromatopsia (no color) | #4F4F4F | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A516C
#3A516C
oklch(42.8% 0.053 253)
- #614B2D
#614B2D
oklch(42.8% 0.054 74.2)
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 #3A516C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.032
- Dusty Grape #545775 ΔE 0.045
- Dusk #4E5481 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.048
- Deep Sea Blue #015482 ΔE 0.051
- Light Navy #155084 ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.052
Use #3A516C 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.