#3A536E
Closest named color: YInMn Blue (#415A77). oklch(43.4% 0.054 251), rgb(58, 83, 110).
Aa
White text reads best on this color (7.94:1).
About this color
#3A536E is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.054 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.026 away. White text reads best on it, at 7.94:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.64:1 |
| White text | 7.94:1 |
Values
| HEX | #3A536E |
| RGB | rgb(58, 83, 110) |
| HSL | hsl(211, 31%, 33%) |
| OKLCH | oklch(43.4% 0.054 251) |
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 #3A536E | 7.94:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #3A536E | 2.64:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #3A536E text on white | 7.94:1 | AAA | Lc 87.5 | Fine for body text |
| #3A536E text on black | 2.64:1 | 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
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B2C3D5
oklch(81% 0.032 249.7)
-
Step 400
400
#8AA3C0
oklch(70.6% 0.051 252.3)
-
Step 500
500
#6C8DB0
oklch(63.2% 0.065 250.4)
-
Step 600
600
#54769C
oklch(55.6% 0.071 251.9)
-
Step 700
700
#446385
oklch(49% 0.066 251.5)
-
Step 800
800 (this color)
#3A536E
oklch(43.4% 0.054 251)
-
Step 900
900
#314358
oklch(37.7% 0.043 252.7)
-
Step 950
950
#1D2733
oklch(26.9% 0.027 253.3)
#3A536E 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) | #48546F | 0.020 |
| Deuteranopia (no green cones) | #424F6D | 0.015 |
| Tritanopia (no blue cones) | #25595C | 0.047 |
| Achromatopsia (no color) | #515151 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A536E
#3A536E
oklch(43.4% 0.054 251)
- #644C2E
#644C2E
oklch(43.4% 0.055 71.7)
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 #3A536E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.026
- Dusty Grape #545775 ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.043
- Dusk #4E5481 ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.049
- Light Navy #155084 ΔE 0.051
- Petrol #005F6A ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.054
Use #3A536E 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.