#3A576F
Closest named color: YInMn Blue (#415A77). oklch(44.4% 0.053 244.3), rgb(58, 87, 111).
Aa
White text reads best on this color (7.57:1).
About this color
#3A576F is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.053 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.018 away. White text reads best on it, at 7.57:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.77:1 |
| White text | 7.57:1 |
Values
| HEX | #3A576F |
| RGB | rgb(58, 87, 111) |
| HSL | hsl(207, 31%, 33%) |
| OKLCH | oklch(44.4% 0.053 244.3) |
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 #3A576F | 7.57:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #3A576F | 2.77:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #3A576F text on white | 7.57:1 | AAA | Lc 86.3 | Fine for body text |
| #3A576F text on black | 2.77:1 | Fails | Lc -15.8 | 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
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#D0DBE4
oklch(88.6% 0.017 242.5)
-
Step 300
300
#B1C3D4
oklch(80.9% 0.031 246.7)
-
Step 400
400
#87A5BE
oklch(70.8% 0.05 243.7)
-
Step 500
500
#698EAD
oklch(63.1% 0.062 244.3)
-
Step 600
600
#507899
oklch(55.7% 0.068 244.3)
-
Step 700
700
#406582
oklch(49.1% 0.063 243.2)
-
Step 800
800 (this color)
#3A576F
oklch(44.4% 0.053 244.3)
-
Step 900
900
#2F4456
oklch(37.7% 0.041 245)
-
Step 950
950
#1C2832
oklch(27% 0.025 244)
#3A576F 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) | #4D5770 | 0.026 |
| Deuteranopia (no green cones) | #46526F | 0.021 |
| Tritanopia (no blue cones) | #245D5F | 0.044 |
| Achromatopsia (no color) | #545454 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A576F
#3A576F
oklch(44.4% 0.053 244.3)
- #684E34
#684E34
oklch(44.5% 0.053 65.8)
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 #3A576F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.018
- Dusty Grape #545775 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.041
- Dusk #4E5481 ΔE 0.044
- Petrol #005F6A ΔE 0.046
- Deep Sea Blue #015482 ΔE 0.052
- Denim #3B638C ΔE 0.053
- Slate #516572 ΔE 0.055
Use #3A576F 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.