#3A536D
Closest named color: YInMn Blue (#415A77). oklch(43.3% 0.053 250.1), rgb(58, 83, 109).
Aa
White text reads best on this color (7.96:1).
About this color
#3A536D is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.053 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.027 away. White text reads best on it, at 7.96:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.63:1 |
| White text | 7.96:1 |
Values
| HEX | #3A536D |
| RGB | rgb(58, 83, 109) |
| HSL | hsl(211, 31%, 33%) |
| OKLCH | oklch(43.3% 0.053 250.1) |
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 #3A536D | 7.96:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #3A536D | 2.63:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #3A536D text on white | 7.96:1 | AAA | Lc 87.5 | Fine for body text |
| #3A536D text on black | 2.63:1 | Fails | Lc -14.6 | 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
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B2C3D4
oklch(81% 0.03 248.2)
-
Step 400
400
#8AA4BF
oklch(70.8% 0.049 249.5)
-
Step 500
500
#6C8DAF
oklch(63.1% 0.064 249.6)
-
Step 600
600
#54769A
oklch(55.5% 0.069 250.5)
-
Step 700
700
#446384
oklch(49% 0.065 250.8)
-
Step 800
800 (this color)
#3A536D
oklch(43.3% 0.053 250.1)
-
Step 900
900
#314357
oklch(37.6% 0.041 251.6)
-
Step 950
950
#1D2833
oklch(27.2% 0.026 248.8)
#3A536D 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) | #49546E | 0.021 |
| Deuteranopia (no green cones) | #424F6C | 0.015 |
| Tritanopia (no blue cones) | #26595C | 0.045 |
| Achromatopsia (no color) | #515151 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A536D
#3A536D
oklch(43.3% 0.053 250.1)
- #644C30
#644C30
oklch(43.5% 0.053 70)
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 #3A536D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.027
- Dusty Grape #545775 ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.045
- Dusk #4E5481 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.050
- Petrol #005F6A ΔE 0.052
- Light Navy #155084 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.053
Use #3A536D 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.